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Operator
Good day, and thank you for standing by. Welcome to ZoomInfo First Quarter 2023 Financial Results Conference Call. (Operator Instructions) Please be advised that today's conference is being recorded.
I would now like to hand the conference over to your speaker today, Jerry Sisitsky, Investor Relations. Please go ahead.
Jeremiah Sisitsky - VP of IR
Thanks, Amy. Welcome to ZoomInfo's financial results conference call for the first quarter of 2023. With me on the call today are Henry Schuck, Founder and CEO of ZoomInfo; and Cameron Hyzer, our CFO. After their remarks, we will open the call to Q&A.
During this call, any forward-looking statements are made pursuant to the safe harbor provisions of U.S. securities laws. Expressions of future goals, including business outlook, expectations for future financial performance and similar items, including, without limitation, expressions using the terminology may, will, expect, anticipate and believe and expressions, which reflect something other than historical facts are intended to identify forward-looking statements.
Forward-looking statements involve a number of risks and uncertainties, including those discussed in the Risk Factors sections of our SEC filings. Actual results may differ materially from any forward-looking statements. The company undertakes no obligation to revise or update any forward-looking statements in order to reflect events that may arise after this conference call, except as required by law. For more information, please refer to the cautionary statement in the slides posted to our Investor Relations website at ir.zoominfo.com.
All metrics on this call are non-GAAP, unless otherwise noted. A reconciliation can be found in the financial results press release or in the slides posted to our IR website.
With that, I'll turn the call over to Henry.
Henry L. Schuck - Founder, Chairman of the Board & CEO
Thank you, Jerry, and welcome, everyone. In Q1, we delivered 24% revenue growth, better-than-expected profitability with an adjusted operating income margin of 40% and more than $121 million in unlevered free cash flow. While we can't control the macroeconomic environment, we can control how we manage the business, and we are executing efficiently. Even when facing continued scrutiny on deals against the macro backdrop that we have not seen improve, our financial results demonstrate the value that our platform delivers to customers everywhere. With that backdrop, we continue to drive a leading combination of growth and profitability, while approximately 40% of our revenue comes from software companies.
When you incorporate financial services, venture-backed companies and the broader technology space, the majority of our customers are being impacted by the current economic environment. We are confident that when there is a more stable and certain economic outlook, we will see even higher levels of growth accompanied by even stronger profitability. Until we get there, we are executing against our plans for the year with confidence and reaffirming our full year guidance, which calls for 17% revenue growth and more than $0.5 billion in unlevered free cash flow for the year. While we grew our $1 million cohort of customers materially quarter-over-quarter, our 100,000 cohort lost logos in Q1 as software companies down sold.
We ended the first quarter with 1,905 customers that have more than $100,000 in ACV, up approximately 17% year-over-year. Gross churn remains consistent and the total ACV for that cohort continues to grow. We also continue to see bright spots in less effective end markets like manufacturing and transportation and logistics where we are seeing accelerating demand on the new business side and strong seat growth on the customer side. Given the incredibly large and growing addressable market, quick time to value and the strong ROI we deliver, we continue to invest in the business to drive future growth, widen our competitive moat and be even better positioned when the economy improves.
We are capitalizing on opportunities to evolve our go-to-market approach and improve our own internal seller efficiency. By further specializing the roles of our sales and support teams, building persona-based centers of excellence across all functions and developing a more product-led motion for our downmarket customer segment, we're able to optimize our entire organization for greater effectiveness and efficiency. We're continuing to invest behind our PLG motion to drive additional ways for customers to transact with us from first touch through renewal. Today, Sales OS customers can buy additional seats and credits via self (inaudible) with hundreds of transactions per quarter, leveraging our self-service store since its launch in Q3 of 2022.
This easier pathway to purchase is driving more and more customers to leverage self-service including enterprise customers looking to provision user trials and add seats. We expect to expand our (inaudible) motion to be able to fully support acquisition, growth and retention motion, allowing our go-to-market teams to focus on more complex, higher-value use cases. These levers are enabling us to invest behind our enterprise business while still maintaining our high velocity, high efficiency engine down market.
Examples of these investments, which we are already seeing gains from include a more dynamic and rigorous pricing infrastructure, leveraging our platform and first-party data to synthesize critical signals and prescribe upsell, cross-sell and pricing motions to the field. The rollout of a new sophisticated sales methodology to drive transparency and accountability upmarket, up-leveling our sales talent and an overall more strategic and high-touch approach to our enterprise customers. So that we can unlock their potential as customers and that they can unlock their potential as world-class go-to-market leaders themselves.
In product, we are investing our resources to create delightful customer experiences, extend our data leadership and expand upmarket. Those investments are paying off with nearly every engagement metric increasing across our core SalesOS product and our Chrome extension reach out. We view increased engagement as a positive leading indicator for retention. We are also laser-focused on driving seller productivity for our customers, something that Chief Revenue Officers are especially attuned to today. Within SalesOS, we added native sales engagement capabilities, enabling sellers to reach out to prospects in seconds without ever leaving the platform.
Users can simultaneously log their activities and launch multi-touch campaigns in real time. Over the quarter, users of this new experience have demonstrated a 22% higher likelihood to become daily active users as we expand our use case more centrally into their day-to-day workflows. With Chorus, we continue to push the frontier of conversation intelligence and AI to increase seller productivity across account executive, account management and post sales team. Our new generative AI-powered meeting summaries automatically produce meeting notes and create action items to help sellers move deals forward, ensuring consistent follow-through and increased rep productivity.
To use the words of one of our customers, Chorus' AI post-meeting summary is a feature that's completely changed my workflow. There is absolutely no reason to ever take notes during a call again. It captures every single relevant detail from a meeting along with key action items. We expect to continue investments in AI and workflow automation as we become an irreplaceable tool in every go-to-market tech stack.
In MarketingOS, we introduced account deal stories, enabling sales and marketing teams to rally around the same deal and account insights by bringing all activities, engagements, intent signals, web forms and e-mail correspondence that influence a deal into a single place. Now sales and marketing teams have access to complete information across the entire funnel, delivering a better customer experience and shortening time-to-close. Our newly released spend reports complement this experience, allowing customers to monitor and optimize the impact of their multichannel campaigns.
On the partnership side, we're excited to announce a new partnership with Databricks, a leading data lake house provider to deliver ZoomInfo's comprehensive B2B data sets directly to customers in the Databricks platform, creating a new channel for accessing and purchasing ZoomInfo through the Databricks marketplace. Our customers will be able to seamlessly leverage our powerful go-to-market data to unlock the full potential of their data workflows, analytics, modeling, machine learning and AI initiatives.
During the quarter, we closed transactions with many of the world's strongest brands and leading enterprises, including Chevron, Choice Hotels, Dow Jones, JPMorgan, Juniper Networks, Panera Bread, Shaw Communications, UKG, U.S. Bank and Wyndham Hotels. These globally recognized brands turned to us not only because of our market-leading data and software, but also because of our industry-leading data privacy and notice practices. This advantage is especially powerful with our multinational clients, who are looking to expand with a trusted partner in Europe and beyond. This drives our success internationally, where despite stronger economic headwinds, we continue to grow faster than our domestic business.
In the quarter, we saw this come to fruition as we expanded our global data set to 2 of the world's largest cloud software companies who switched to ZoomInfo away from legacy providers because they couldn't trust their privacy and data compliance practices. Our industry-leading rigorous standards for privacy and compliance were aligned with their values of customer trust and integrity. In addition to those, we also grew our customer footprint in EMEA with one of our largest global expansions with a U.K.-based multinational pest control enterprise. And with GMG Events, an international provider of exhibitions and media that brought on SalesOS to drive seller efficiency worldwide.
We also continue to see strong enterprise demand for our TalentOS platform in a hiring market that remains very competitive for top talent. We brought on 2 Fortune 50 companies, one of the largest retail pharmacies and a major life insurance provider for property, casualty and life insurance, who are now leveraging our platform to quickly recruit candidates. A number of businesses replaced their existing ABM providers and switched to MarketingOS including a global technology company that wanted to target their entire addressable market more accurately and a Texas-based higher education software provider that wanted to save money and go to market more efficiently.
We also sold our largest ever MarketingOS transaction to a food services company looking to target businesses more effectively as companies return to office.
In closing, I've never been more confident in the ROI that our platform delivers and the innovation that we're delivering for our customers. The highly accurate data and insights powered by the triggers, automation and workflow to activate that data, drive tremendous value and engagement. We remain early in the digital transformation of B2B sales as more and more businesses continue to discover the power that our data and insights provide. Despite the current economic environment and the business challenges our customers are facing, buyers continue to invest in modernizing their go-to-market, and as a result, we are confident that as the economic outlook stabilizes, our growth will accelerate.
With that, I'll hand it over to Cameron.
Peter Cameron Hyzer - CFO
Thanks, Henry. In Q1, we delivered revenue of $301 million, up 24% year-over-year and up 1.9% sequentially on an annualized basis when factoring in the 2 fewer days of revenue recognition in the first quarter. Excluding the impact of products acquired within the last 12 months, our organic revenue growth for the quarter was 23%. Given that we completed our most recent acquisitions at the beginning of Q2 2022, we do not anticipate inorganic revenue contribution next quarter. Adjusted operating income in Q1 was $120 million, a margin of 40%. GAAP net income was $45 million, and GAAP EPS was $0.11 per share. Non-GAAP EPS was $0.24 per share.
Overall, the environment degraded in the first quarter, similar to the assumptions upon which we built the guidance. The majority of our customers operate in industries meaningfully impacted by the current economic environment, including software, other technology and financial services. and all customers are scrutinizing spending across vendors. This backdrop makes the starting point for renewals and upsells more challenging, impacting overall sales efficiency and putting downward pressure on NRR. As contemplated in our guidance, net retention activity was incrementally worse than what we experienced in Q4, while new sales was roughly flat relative to Q1 2022, slightly better than what we contemplated in the guidance.
This better sales performance was partially offset by increased revenue reserves related to write-offs among our SMB customers. With this performance and more visibility into the remainder of the year, we are reaffirming our previously provided full year guidance, which calls for 17% revenue growth at the midpoint and an implied adjusted operating margin of 41%. International revenue grew 32% relative to Q1 2022, and international customers contributed 13% of the revenue in the quarter.
Turning to cash flow. Operating cash flow was in Q1 was $109 million, which included approximately $19 million of interest payments. Unlevered free cash flow for the quarter was $121 million or 101% of adjusted operating income. Cash flow conversion in Q1 exhibited lower-than-normal seasonality due to lower prior quarter billings relative to AOI, coupled with the banking crisis at the end of Q1 that delayed some payments to us and forced us to make certain benefits payments ahead of schedule. We expect these timing impacts to reverse in the coming quarters. As reflected in our guidance, we continue to expect unlevered free cash flow conversion in the range of 95% to 100% for the full year.
With respect to the balance sheet, we ended the first quarter with $616 million in cash, cash equivalents and short-term investments. At the end of Q1, we continue to carry $1.25 billion in gross debt, all of which is fixed or hedged in terms of interest rates. During the quarter, we completed a repricing of our first lien credit agreement at par, which resulted in a 4-year maturity extension to 2030 and a 25-basis point reduction in the interest rate. We again drove an improvement in our leverage ratios with a net leverage ratio of 1.3x, trailing 12 months adjusted EBITDA and 1.2x, trailing 12 months cash EBITDA which is defined as consolidated EBITDA in our credit agreements.
During the quarter, we repurchased approximately 1 million shares of ZoomInfo common stock at an average price of $23 per share. In aggregate, we deployed a total of $24 million of the $100 million share repurchase authorization that we announced on March 14, 2023. We remain in the market repurchasing shares, and we expect to continue to be opportunistic with respect to repurchases.
With respect to liabilities and future performance obligations, unearned revenue at the end of the quarter was $451 million and remaining performance obligations, or RPO, were $1.1 billion, of which $839 million are expected to be delivered in the next 12 months. We believe that calculated billings, bookings and RPO are imprecise metrics to assess in-period activity and forward momentum.
Because of the inherent noise in and sometimes conflicting signals across these metrics, we focus on sequential annualized revenue growth, which was 1.9% in the first quarter. Furthermore, given that we are seeing sales efficiency begin to stabilize and revenue -- and April performance begin the quarter better than January did, we expect sequential annualized revenue growth to accelerate in the second quarter as is reflected in our guidance.
For Q2, we are providing guidance as follows: We expect revenue in the range of $310 million to $312 million. Adjusted operating income in the range of $125 million to $127 million. And non-GAAP net income in the range of $0.22 to $0.23 per share. Our Q2 guidance implies year-over-year growth -- revenue growth of 16% and an adjusted operating margin of 41% at the midpoint of guidance. Another quarter of visibility, we have further confidence in our ability to achieve or exceed our full year guidance.
As a result, we are reaffirming our full year 2023 guidance, which calls for revenue in the range of $1.275 billion to $1.285 billion and adjusted operating income in the range of $523 million to $533 million. We expect non-GAAP net income in the range of $0.99 to $1.01 per share, up from the prior range of $0.98 to $1 per share with non-GAAP net income per share based on 417 million weighted average diluted shares outstanding.
We expect unlevered free cash flow in the range of $507 million to $517 million. Our full year guidance implies 17% revenue growth at the midpoint and both adjusted operating margin and unlevered free cash flow margin at or above 40%.
With that, let me turn it over to the operator to open the call for questions.
Operator
(Operator Instructions) And our first question is from Alex Zukin with Wolfe Research.
Aleksandr J. Zukin - MD & Head of the Software Group
I appreciate a lot of the detail on the underlying business. I guess maybe start for Henry. It looks like kind of a tale of 2 businesses, right? You have the business that the underlying customers are impacted, and you're doing really well with the new business, obviously, some headwinds on retention and upsell. Just maybe if you split those 2 out, and you look at them separately, what would the non-impact of business look like versus the impacted business? And as you talk to customers, as you talk to other CEOs, kind of where are we on that timeline where we kind of start to rebase into a new normal sales cycle on the impacted side?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Look, I think the way to think about this, Alex, is it's a little bit less like there's a group of companies that are doing really like well and then a group of companies that are more challenged. Even within the tech and software vertical, a number of the companies that moved into our $1 million cohort this quarter were from software or tech companies. What we've said in the past, which is still true, is that there is a lot of demand for our products and services.
And so we continue to add headcount -- quota-carrying headcount into our account management and account executive organization because as we're out there trying to upsell in our customer base, trying to cross-sell in our customer base, we're also affected on the other side by renewals taking longer, general sales cycles elongating for those same deals. And so we're not able to get to as much of it that's out there.
So we're continuing to hire there, continue to hire those quota-carrying reps because even in the industries that are impacted, we are seeing opportunity and demand. And as far as the sales cycle coming back to a more normal state, what I'll say is I'll reiterate what Cameron said, which is April as compared to January is off to a much better start than January was.
Aleksandr J. Zukin - MD & Head of the Software Group
Perfect. And then maybe just on the -- any comments on the competitive environment. We keep hearing anecdotes of there's kind of [fierce] price competition, a lot of overlapping offerings increasingly coming out of the space. Where -- as you look over the next 12 months and beyond, and you think about the incremental competitive differentiation of the offering, like where are you seeing it show through right now?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes. So what I'd tell you first is the competitive landscape has not changed. Our win rates have not changed as they relate to our competitors. If anything, we feel ourselves moving further and further away from the competitors in our space. And ACV per customer was roughly flat and discounting was consistent to what we saw in Q4. And so we haven't been pressured in that way. I think when you think about differentiation in the space, I think there's 2 things. One, we're continuing to invest in our data and our data asset, so we're very obviously the leader when it comes to data coverage, breadth and accuracy.
I want to pull further and further ahead of anybody in the market there. And then second, as we bring everything together in an integrated experience as you saw us really start doing this quarter by bringing in sales engagement into the core SalesOS platform, we think that interconnectivity between platforms and systems creates a long-term differentiation when put together with our best-in-class data assets.
Operator
And our next question is from Elizabeth Porter with Morgan Stanley.
Elizabeth Mary Elliott Porter - VP of Equity Research
I just wanted to ask a bit on NRR first. Directionally, it sounds like NRR got a little bit worse in Q1 versus Q4, which is what you had expected in your guidance. Directionally, what's the risk that we could see incremental weakness through the year in NRR from that Q1 rate as the macro gets a little bit more difficult? And on the offset, while it's still early, there's a lot of uncertainty, is there an opportunity to improve upsell as we just lap some of the tough comps in the coming quarters?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes. Thanks, Elizabeth. So we are starting to see upsell opportunities among many of our clients. And even in Q1, but more so as we move into Q2. Yes, I think there's a really significant opportunity for upsell and gross retention continues to hang in pretty well. That being said, there is the potential for downsell. And I think we're seeing a little bit more downsell as well, particularly in the software sector, where we are -- where there are a number of layoffs.
But as we start to lap many of the harder renewals that when we really started to see pressure even in Q2 of last year. As we start to lap those renewals, we feel that many of those renewals in the software space may actually start to go better as we get further and further into the year.
Elizabeth Mary Elliott Porter - VP of Equity Research
Great. And then just as a follow-up. Given the recent leadership announcement, did you guys see any disruption from the changes in Q1, and if so, was it any better or worse than what you had expected? And how should we think about the impact for the remainder of the year?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes. Look, we've seen a real positive impact from Dave and Ally's entering the company. And so we didn't see any disruption in Q1 from them coming in. I think if anything, we feel their impact was increasingly positive on the organization, and they're both focused on improving productivity and org design and for Dave upmarket execution. And so we feel really good about their contribution so far.
Operator
And our next question comes from Koji Ikeda with Bank of America.
Koji Ikeda - VP & Research Analyst
I just wanted to ask a couple here. First one being about -- just kind of going back to the sales linearity, April being a better month than maybe the March and February or even better than January like you stated. So could you talk about that a little bit more? What exactly does that mean? Does that mean that the pipeline generation is better? I know there's more sales capacity in the sales department today versus the beginning of the year. So that kind of makes sense if that's the case? Or is it sales productivity? I mean, I guess, maybe a little bit more color on how April is being better than kind of the previous months.
Peter Cameron Hyzer - CFO
Yes. So in terms of linearity, specifically April was better than January. Typically, we do have some level of linearity within the month. So the first month is oftentimes a little less than the second month, which has been less than the third month. But we do feel that momentum and on an adjusted basis, comparing it to January gives us good confidence in where Q2 is going. And certainly from a -- and that's actual sales, closed sales. From a pipeline perspective, I think we're seeing a similar dynamic of improvement in Q2.
Koji Ikeda - VP & Research Analyst
Got it. Got it. And I wanted to ask a follow-up question here on RPO. Just current RPO and RPO the growth slowed in the first quarter to the high teens, from the mid- to high 20s last quarter and even it was a bit down sequentially in the first quarter. So could you walk us through maybe some of the underlying mechanics there? Anything to call out specifically maybe on duration or co-terming, or anything that caught on the ARPU to help us understand that metric a little bit better.
Peter Cameron Hyzer - CFO
Sure. Well in -- certainly, we are seeing fewer long-term contracts and that you can kind of see the difference in RPO versus current RPO when you're looking at that. The other thing that does impact RPO is we mentioned that we had a greater number of write-offs in the quarter related to small business clients. And that flows through RPO more dramatically than some because those are often contracts that haven't been billed yet.
Operator
Our next question is from Mark Murphy with JPMorgan.
Mark Ronald Murphy - MD
In the last 1.5 weeks, we've noticed some incremental layoff announcements and Cameron, I think you alluded to it, but we've seen it from Dropbox and Alteryx and Red Hat and Lenovo and F5. The -- if you look at that trend, would you expect the over $100,000 customer cohort to continue contracting in the near term? Or is it based on the -- your kind of pipeline comments, and how April started, is it possible that, that was more of a onetime event?
Peter Cameron Hyzer - CFO
I think our expectation is that we're going to continue to focus on driving more value for our largest clients. And as a result, focus on driving the $100,000 customer cohort higher. That being said, most of the degradation or all the degradation came from software companies, which still comprise a good portion of the $100,000 customers, so to the extent that those layoffs are largely concentrated in software companies, particularly kind of the degradation for us is those companies that are close to that $100,000 number, so a small downsell ends up pushing them under. So it's the kind of small and midsized software companies that we actually have the most risk if you're purely focused on that 100 million -- $100,000 level.
Mark Ronald Murphy - MD
Okay. That makes sense. And then as a follow-up, Henry, you mentioned a couple of Fortune 50 companies selected TalentOS for recruiting, I think you said, and that surprised me a little bit. Can you dimensionalize those transactions just in terms of either how many seats or just -- are they needle movers if you compare it to some of the core marketing and sales products?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes. I mean these are -- you should think of them as sort of high 5-figure transactions or mid-5-figure transactions, but they're not $1 million transactions or they wouldn't enter the $100,000 cohort, mainly because when you go into the talent acquisition team, they're often smaller, much smaller than a sales team at an organization. But those are also good starting points for us to continue to grow inside of those organizations. So you could -- that's -- those are contracts where you get the talent acquisition folks who are acquiring talent for IT or for pharmacists. And then we have an opportunity to spread out from there.
Operator
Our next question comes from Kash Rangan with Goldman Sachs.
Kasthuri Gopalan Rangan - Analyst
Cameron, I think you talked about net new business being flat in Q1. Can you compare that to how net new business was in Q4 of last year? I'm trying to understand the trajectory. Did it -- was it negative going to flat or flat staying flat? And also when I look at the numbers on a go-forward basis, the sequential amount of new dollars to be added, we need to see some sequential acceleration in Q2, Q3 and Q4 to hit your guidance. So what are the things that drive the numbers in such a way that we can get to that accelerating revenue growth in the second half versus the annualized growth rate that you put up based on the sequential subscription revenue growth rate in Q1.
Peter Cameron Hyzer - CFO
Sure. So Q4 new sales were modestly up in Q4 of '22 relative to '21. So it's a kind of modest deceleration being flat. We are continuing to add sales capacity in both the new and the existing customer side in order to continue to drive that. As we look forward, and we develop our guidance and assumptions, we are focusing on what does the shape of expirations and renewals look like as well as what our sales capacity looks like in terms of new sales and upsell possibilities.
And so with added sales capacity and the shape of expirations that start to get us a little bit more support as we're going forward. That gives us good confidence in our ability to see that accelerating sequential revenue growth in order to hit the guidance. And certainly, where we have obviously, very good visibility into Q2. We're already seeing that in April compared to January as well.
Kasthuri Gopalan Rangan - Analyst
Would you see an easier net new business comps in the second half of this year relative to last year? Would seem like it is?
Peter Cameron Hyzer - CFO
Sorry, can you repeat that? I can't quite hear you.
Kasthuri Gopalan Rangan - Analyst
It would seem like you have easier net new ACV comps in the second half of this year versus last year.
Peter Cameron Hyzer - CFO
Yes, absolutely. We started to see obviously, pressure when we talked about net retention and so forth in Q2, but that got -- that pressure more materially impacted Q3 and Q4 last year, which obviously creates an easier comparable to achieve that.
Operator
Our next question is from Taylor McGinnis with UBS.
Taylor Anne McGinnis - Equity Research Analyst for Software
Maybe just to piggyback off the last question with the guide implying sequential growth to accelerate throughout the year. Cameron, can you break that down maybe a little bit further into new versus existing? And what gives you comfort on those 2 different variables. And I guess, more specifically, if NRR came down a little bit further in this last quarter, how does that compare to maybe what is embedded in the full year guide? And if there's any risk there if the macro deteriorates further?
Peter Cameron Hyzer - CFO
Yes. So we do expect that as we continue to grow the sales team throughout the course of the year, that will support growth in terms of the new sales as well as potential upsells. We do actually also have some seasonality historically, which is based on that shape of renewals and expirations that are coming in that actually support higher net retention activity as you move through the year. And so that will help out as well.
Operator
Our next question is from Raimo Lenschow with Barclays.
Raimo Lenschow - MD & Analyst
Can you talk a little bit about the -- what you're seeing in terms of pipeline quality. What I'm referring to is, at the beginning of the crisis, people kind of downsell their seats, et cetera. But you have obviously like quite a few of extra offerings out there. Like what do you see in terms of people's appetite to kind of -- kind of go into kind of the higher value add solutions from you guys? And then I have one follow-on.
Henry L. Schuck - Founder, Chairman of the Board & CEO
I mean I think we're -- thanks, Raimo. I think where we're seeing really great results is in our mid-market and higher customers, so enterprise, mid-market our strategic customers. They are coupling together numerous of our platforms and products. And so when I think about the big deals that closed in Q1, almost all of them were multi-platform deals. And so they brought our Data-as-a-Service offering and our OptOS offering together with our SalesOS offering, they added TalentOS and SalesOS.
They leverage our company and contact brick data inside of Snowflake. And so when we saw the deals that we're seeing are combining multiple of our platforms together, and we think that, that is a strategy that we're executing against and employing throughout our account base. And I think as we continue to iterate on that strategy, we'll see more and more of that.
Raimo Lenschow - MD & Analyst
Okay. Perfect. And then as we kind of think about second half easier comps, et cetera, Cameron, what is your thinking in terms of buyback? And maybe remind us the situation that you're -- that you're in at the moment, because like, obviously, the share is under pressure or were under pressure, but it looks like you're stabilizing, how are you thinking about buybacks at this level?
Peter Cameron Hyzer - CFO
Sure. So in mid-March, we authorized a $100 million buyback through the end of the quarter. We repurchased about $24 million, and we did continue to repurchase in April as well. Our expectation is to continue to be in market and opportunistically repurchase shares here in the second quarter. And we have not agreed with the Board or had kind of further conversations about additional buybacks after the $100 million.
Operator
Our next question is from Michael Turrin with Wells Fargo.
Michael James Turrin - Senior Equity Analyst
Just for all the detail in terms of what's assumed. Maybe one on margin, Cameron, if I may. Any update around how you're thinking through trade-offs there, given it sounds like some mixed signals between macro and what you're seeing in terms of ramping productivity on the sales side? How quickly are you able to dial up or dial down the need for sales capacity based on what you're seeing? And anything else we should be mindful of in thinking through margin and free cash flow impacts for the coming year?
Peter Cameron Hyzer - CFO
Yes. So our expectation is that we're going to add roughly 50 basis points of margin in 2023 relative to where we were in 2022. Yes, I think our ability to dial up and dial down sales capacity is slightly different. Dialing down is relatively easy dialing up. We do need to go out and hire folks, and we're very focused on hiring the highest quality folks that we can or moving people up through our training programs and into high-quality sales folks.
But I think we -- this is something that we've done for a long time and are focused on being efficient, not just with the sales capacity, but also how we build those teams over time. And I think we feel very comfortable that we'll be able to continue to add capacity as we move through the year.
Operator
Our next question is from Brad Zelnick with Deutsche Bank.
Brad Alan Zelnick - Head of Software Equity Research and Senior US Software Research Analyst
Henry, you talked about generative AI capabilities related to Chorus. I was wondering if you could maybe speak about the broader opportunities across the portfolio and perhaps as well threats to ZoomInfo from generative AI and other perhaps new breed of competitors that are out there.
Henry L. Schuck - Founder, Chairman of the Board & CEO
Thanks, Brad. Look, I think when we think about what ZoomInfo is doing, we are in the business of making go-to-market more productive. And we really do expect the large language models to accelerate our leadership in intelligence and automation in kind of 2 big ways. First, for our own products, we're going to be able to automate manual and mundane steps for our users. So for example, instead of finding the next best customer on your own, trying to triangulate signals to figure out who you should be engaging with and then what you should be saying to those companies, we're going to be able to use AI to parse those signals, select the highest conversion opportunity, pick the best channel and then actually create personalized content to engage because of all of the context we know about companies and people.
And we're already have multiple teams working on incorporating this technology into our platform. The other thing that I would tell you is, for our customers, what we've always been saying is that bad CRM data creates all sorts of downstream issues. And where we highlight those, those tend to be around territory planning, rep efficiency, segmentation, getting insights out of your CRM system. But generative AI coming to the market just shines a really big light on the problem that bad data creates inside of your CRM.
And so the awareness of that issue is increasing exponentially as companies realize that they can't rely on their CRM data to put into these models and get the efficiencies and the upside that you're expected to get from incorporating generative AI into your offering. So I'll share a quote that I recently read in Forbes about generative AI coming to go to market. And it says: "It's coming, it's going to elevate the importance of your CRM system because for all of this to work, AI needs data."
And companies that are expecting to get that data out of their CRM system are going to need to have that data fully enriched, fully impended, constantly cleansed and we are, by far, the leading provider to help them do that. And then by helping them do that, helping them see the benefits of generative AI in the future.
Brad Alan Zelnick - Head of Software Equity Research and Senior US Software Research Analyst
Really helpful color. Maybe just a quick housekeeping item for Cameron. Any changes to full year headcount plans and where you're tracking year-to-date?
Peter Cameron Hyzer - CFO
We're obviously focused on continuing to support all the investments that we're making. And at this point, we are still below where we had ended in September of '22. But we're going to tactically hire where we -- where we feel that it's most important, mostly in the sales and capacity areas within sales. Then we'll focus on efficiency throughout the rest of the organization. And hiring where we think the investments are well warranted, but also looking for areas where we can drive efficiencies going forward.
Operator
Our next question is from Brian Peterson with Raymond James.
Johnathan M. McCary - Research Associate
This is Johnathan McCary on for Brian. We'll just keep it to one. So I know you guys mentioned the 40% exposure to software, but you've also seen some traction in some other verticals recently. Can you talk about how you think about potential go-to-market investments? Are new partnerships necessary to kind of further build on that expansion in newer verticals?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes, sure. So the -- I think a couple of ways that we're looking to attack sort of these new verticals. One, we talked about new pricing calculators that we're putting out to the field so that they understand based on usage, based on usage and data consumption and the types of companies, industry sizes, growth rate where we have opportunities to upsell and cross-sell, and that's going to show up most of the time in these non-affected industries.
And so we're prescribing plays based on our own data, based on product data, based on the company's growth data to the field to run cross-sell, upsell and pricing activities. I think the second thing is we continue to invest in our product-led growth motion to be able to unlock efficiencies in the down market, to unlock efficiencies in industries that we don't historically sell to.
And so we're building the ability for new customers to transact and become customers with us without ever having to interact with a direct seller and then the ability for them to onboard in an efficient in context, in platform way. And so those are a couple of the initiatives we're using to sort of drive our growth in the other industries.
Operator
Our next question is from Brent Bracelin with Piper Sandler.
Brent Alan Bracelin - MD & Senior Research Analyst
Cameron, I wanted to go back to the discussion on renewals, particularly given the exposure to software. If we were to double click into the seasonality of the software renewal expiry base, is there a big chunk that expires here in Q2 that you have visibility into? Is it still more second half of the year, Q4 weighted? Any color there? And then talk a little bit about the puts and takes. I clearly understand the risk to renewals, but you also talked a little bit about some upside to optimism that you could actually start to see some expansion upsell opportunities in the renewals as well, too. So any more color there would be helpful.
Peter Cameron Hyzer - CFO
Sure. So with respect to the seasonality, software is a little bit more heavily weighted towards Q4 than the rest of our business. And certainly, most of our business from a renewal perspective is weighted to Q4 relative to the other quarters. Q1 is another big quarter for software as well. So when we think about having gone through the last 2 quarters, they were more materially impacted than perhaps Q2 or Q3 might be if you're focusing on software and the pressure that's placed upon the business as a result of software being more impacted by the macroeconomic environment.
Brent Alan Bracelin - MD & Senior Research Analyst
And then just to clarify, the optimism on potential upsells getting better. Is that more of a commentary for segment and renewals outside of software that you're a little more optimistic on upsells?
Peter Cameron Hyzer - CFO
I think we see it. We definitely see it outside of software. I think what we're starting to see is even within software for larger customers that are focusing on where they can be more efficient and do more with less. We are starting to see more of a -- more of a sales opportunity there relative to -- in Q4, I think people were more running for cover and looking for ways to cut costs, where now, I think people are focused a little bit more on where can they start to optimize their go-to-market infrastructure. And as Henry mentioned, particularly in places where there are data opportunities, Data as a Service and OperationsOS as well as MarketingOS, we do see some bigger opportunities that are both in the pipeline and things that we're really starting to execute against.
Operator
Our next question is from Rishi Jaluria with RBC Capital Markets.
Rishi Nitya Jaluria - Analyst
Just one question for me. I wanted to ask in terms of what are you seeing in terms of advanced functionality uptake? If I'm not mistaken, I don't think you disclosed it on the prepared remarks. I was just wondering if you could give us some color in terms of what adoption there looks like? And how we should be thinking about future adoption from here just given the uncertainty in the macro and kind of additional scrutiny on budgets?
Peter Cameron Hyzer - CFO
Yes. So the advanced functionality continues to be a bigger and bigger portion of the overall revenue stream. So it continues to grow faster than the overall business. And that's an area where we are seeing those upsells and upsell opportunities, but we're executing against those and are excited about the value that we're able to provide to customers in those scenarios.
Operator
Our next question comes from Parker Lane with Stifel.
Jeffrey Parker Lane - Associate
Henry, you called out a material improvement in the $1 million cohort of customers quarter-over-quarter. So wondering if you can give us a sense of the composition of those customers from a vertical perspective, a product perspective? And then just on average, how long have they been working with ZoomInfo? Are you starting to see more opportunities present themselves in that $1 million-plus range from the onset? Or are these long-standing customers?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes. So these are longer-standing customers. And that is strategically we want to bring customers -- we want to bring prospects into being customers and then expand them from there. And it's a pretty diverse group of companies that moved in. They're the textile rental company, a tech company, a number of financial services companies, a couple of fintech companies. That's kind of how to think about that cohort.
And look, I think one of the things that we are really excited about is bringing Dave Justice in as Chief Revenue Officer to help us really build the methodology, the process to go up market, to go upmarket in a higher velocity, more predictable way. And so we expect that motion to continue to increase and that we'll continue to find companies move into that cohort.
Jeffrey Parker Lane - Associate
Got it. And then, Cameron, one quick follow-up for you, just a housekeeping question here. In the context of your unlevered free cash flow guidance, any change to the underlying assumption of $450-million plus reported free cash flow?
Peter Cameron Hyzer - CFO
No. That remains unchanged.
Operator
Our next question comes from Siti Panigrahi with Mizuho.
Sitikantha Panigrahi - MD
I wanted to ask your confidence level in new business sales that you embedded in your 2023 guidance. So what's your -- what are you expecting in terms of sales efficiency? And what sort of changes you are doing to improve your top-down selling motion?
Peter Cameron Hyzer - CFO
So we continue to have good confidence in the new sales assumption. In fact, given that we outperformed in Q1, I think that gives us even greater confidence with respect to that. Certainly, we've always been very focused on ensuring high efficiency with respect to that team. And we're continuing to invest in more capacity.
One of the things that I think is a really good underlying fact with respect to the new sales motion is that it is more of a diversified customer set that we can go after. If you think about any business that sells to another business, we can really focus on those businesses that are investing in their go-to-market motions, and where they can drive benefits for their company, which means that we're not really constrained by one industry or another being more impacted by the macroeconomic environment.
And we've seen that in different stages of the economic environment that's happening. We've seen that that's rotated around a little, and we've been able to take advantage of continued new sales activity in different industries.
Operator
Our next question comes from DJ Hynes with Canaccord Genuity.
David E. Hynes - Analyst
Cameron, can you talk about what you're seeing in terms of pricing on like-for-like renewals? I'm just curious if the threat of kind of lower price, lower quality alternatives is creating any pressure on the renewal cycle?
Peter Cameron Hyzer - CFO
We don't tend to see that in the renewal cycle, except for at the very low end of customers. So small businesses that are cash strapped or having issues or whatever else. If they're willing to downgrade the quality of product that they're getting, in some cases, they can go out and find another provider that could give them a lower price. But for many of our customers and particularly the larger customers, they aren't willing to take that quality hit in order to pay less.
So while there is some pressure, particularly at the lower end, most of the, call it, change in renewal on the downside comes from people either taking out seats or taking out functionality or reducing the value that they're getting from us. And yes, that tends to happen a little bit more today in kind of the software world where we're seeing layoffs. But we don't see a kind of typical downsell where people are just coming in and asking for more price because the alternative just isn't there from a quality perspective.
David E. Hynes - Analyst
Yes. Okay. That's good to hear. And then, Henry, one for you. So you talked a little bit about PLG in an answer to an earlier question, I saw ZoomInfo LITE in the earnings deck. Is that product intended to be kind of more of a foot in the door that leads to a more formal sales process? Or is that a product that can kind of stand alone at the low end of the market? How are you thinking about it strategically?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes. Thanks for the question. I think we're thinking about it in both ways. There are small businesses that can come in and transact and get limited version of ZoomInfo LITE through the ZoomInfo LITE offering. And then we're also using it as an opportunity to see where multiple people at companies come in, sign up for ZoomInfo LITE at maybe a mid-market or an enterprise company, that gives us an opportunity to get into a direct sales cycle with their leadership and then sell a broader agreement to the full ZoomInfo advanced or elite packages.
And then in addition to that, the underlying technology that we're building to be able to drive ZoomInfo LITE will also give us the ability to auto provision enterprise users to be able to charge enterprise customers in a seamless way directly within the platform. And so we get multiple benefits from the technology that we're building. And then in the actual PLG motion, I think we're going to capture both down market customers that we wouldn't get to, international customers that we wouldn't get to with our regular demand funnel and then also mid-market and enterprise companies that we can -- users that we can then leverage into larger agreement.
Operator
Our next question comes from Terry Tillman with Truist Securities.
Joseph Daniel Meares - Associate
This is Joe Maeres on for Terry Tillman. You just mentioned that most of the change on the renewals and the downside is coming from customers taking out seats or removing functionality. I'm just curious if there are any pieces of functionality that are more resilient or ones that are more likely to be taken out?
Henry L. Schuck - Founder, Chairman of the Board & CEO
Well, I would say, look, in a time where customers are actually laying off members of their sales teams, then the user seats tend to be more in flux from a downsell perspective. So if I like go up 10% of my go-to-market sales force, then that 10%, I'm not going to want to pay licenses for going forward. And so you've seen that happen during the renewal cycles. I would say that where a customer is leveraging advanced functionality, where a customer is leveraging our workflow solution, using our DaaS solution plugged into their systems of record. Those are very, very difficult to unplug, and they're not user-based. So...
Joseph Daniel Meares - Associate
Super helpful answer. Just as a follow-up, I think you recently introduced the ability to bring in outside intent sources onto the platform from G2. And then similarly, you've updated the platform's ability to engage customers intent from websites. So I'm just curious of any usage that you may have seen here, like early customer successes.
Henry L. Schuck - Founder, Chairman of the Board & CEO
Yes. I think the first integration with G2 was one of our fastest adopting integrations. But really, it sets the stage for where we see the platform going which is a platform that can plug in data sort, unique data or niche data sources from anywhere, marry that with ZoomInfo's third-party data, allow you to marry that with your first-party data that we're pulling in through your CRM and marketing automation systems and then build workflow across the intersection of that data, which we think is really exciting. And we think that, that is the future of what modernized go-to-market will look like?
Operator
I am showing no...
Henry L. Schuck - Founder, Chairman of the Board & CEO
Thank you, everyone, for joining us tonight. We look forward to seeing you at one of our many upcoming in-person or virtual investor events. Thank you.
Operator
And this concludes today's conference call. Thank you for participating. You may now disconnect.