Thanks, Andrew. Klaviyo delivered another quarter of strong financial performance in Q3, driving efficient growth at scale. Revenue grew 34% year-over-year to $235 million, and we reported a 14% non-GAAP operating margin, continuing our consistent top and bottom-line performance. We are delivering on our four primary growth vectors, adding new customers, growing in the mid-market, expanding with existing customers and expanding internationally. In Q3, we added over 6,000 new customers, and we now have more than 157,000 customers, up 16% year-over-year. Similar to last quarter, we saw softness in the SMB market and strength in entrepreneurs and in the high end of the market. The diversity of our customer base across size and geography allowed us to deliver another strong quarter despite the softness in one part of the business. Speaking of the high end of the market, we are really pleased with the results from our go-to-market initiatives we implemented last year to support our move up market. At the end of Q3, we had 2,619 customers, generating over $50,000 in ARR, which was up 54% year-over-year. We also had another record high number of customers landing in this cohort in the quarter, a great sign of the traction we're making up market. In addition to the customers you heard Andrew speak about, we also partnered with Lulu's, a digitally native women's fashion brand that was looking to enhance its tech infrastructure, streamline processes and improve its reporting capabilities. In Q3, they adopted Klaviyo for e-mail and are in the process of consolidating SMS with us. With both channels unified, Lulu's will be able to leverage our advanced flows, segmentation and AI tools to deliver more personalized omnichannel communications. We continue to drive expansion with our existing customers as they grow their usage and add new products as can be seen in our dollar-based net revenue retention rate, or NRR, which was 110% for the quarter. As we've been discussing in the last few quarters, this quarterly decline in NRR was expected. As a reminder, NRR is composed of three factors: gross retention, cross-sell of additional products, and expansion of existing products. remains strong, which is a great indication of the value we drive for customers that makes Klaviyo a must-have platform for them. Our cross-sell efforts have also been quite strong, especially with e-mail customers adding SMS. In fact, as of Q3, more than 80% of our top 50 customers now use Klaviyo SMS. And excluding our entrepreneur cohort, nearly 25% of our combined SMB and mid-market customers are using Klaviyo SMS. We're very pleased with that progress. On expansion, we continue hearing from some customers, especially in the SMB space, that macro pressure is continuing and that they are very focused on the ROI of their software spend. Additionally, with the success upmarket that I just discussed, we're seeing many new Klaviyo customers land with multiple products from the start. There are obvious benefits to landing bigger multiproduct deals. However, it can also limit the expansion opportunities within those customers, which has a negative effect on NRR. This pressure on expansion continues to be consistent with what we've been speaking about over the course of the year. As a result, our expectations for continued decline in NRR in the near-term haven't changed, and we expect this expansion pressure to have a modest impact on our growth going into next year. As you heard from Andrew, we're making great progress internationally on both the go-to-market and product fronts, and that is driving strong results. EMEA delivered very strong growth at 45% year-over-year and APAC accelerated from last quarter. Combined, our international revenue grew 41% year-over-year, sustaining the rate of last quarter. These are great results, and we remain focused on making our product easy to use for our international customers, including with additional language launches, as Andrew mentioned. Local language availability is an important unlock to bring more companies onto our platform, and we'll continue to make our product available in more languages going forward. Moving on. Non-GAAP gross profit for the quarter was $183 million, representing a non-GAAP gross margin of 78%, down 200 basis points year-over-year. In addition to the impact from our growing SMS product, gross margin was also pressured as a result of starting our Black Friday, Cyber Monday preparation a bit earlier this year, which increased costs related to infrastructure and testing. As a reminder, due to the seasonality of our business in Q4, we expect Q4 gross margins to be down as a result of elevated e-mail and SMS sending volumes related to the holiday season. We continue to expect our full year non-GAAP gross margin to be down about one point from last year. Turning to non-GAAP operating expenses. Sales and marketing and R&D expenses as a percentage of revenue came in relatively consistent with prior quarters. G&A expense was 12% of revenue, down 580 basis points year-over-year, primarily as the result of an additional international tax-related reserve release, similar to what we saw last quarter. Additionally, you may recall from our Q3 call last year that we had approximately $6 million in IPO-related expenses that did not reoccur this year. Normalized for this tax release and the one-time IPO-related expenses, non-GAAP G&A expense as a percentage of revenue would have been down roughly 100 basis points year-over-year. For the third quarter, our non-GAAP operating income was $34 million, representing a non-GAAP operating margin of 14%. This was better than expected as a result of the revenue overperformance, the leverage driven primarily in G&A operating expenses and headcount coming in a bit lighter than expected for the quarter. We generated free cash flow of $34 million during the quarter, up 57% from the prior year due to higher profit and higher interest income. Moving to guidance. For the fourth quarter, we expect revenue to be $256 million to $258 million, representing growth of 27% to 28% year-over-year. This guidance takes into account the continued softness in the expansion component of NRR as well as the commentary from SMB customers around macro pressure. We expect fourth quarter non-GAAP operating income of $7 million to $9 million, representing a non-GAAP operating margin of 3%. This guidance includes a sequential and year-over-year decline as a result of expense of a new employee cash bonus program that will begin this fiscal year, which we are implementing in Q4. We have not previously had a cash short-term incentive program for employees outside of those associated with our go-to-market team. This will allow us to enhance our ability to align pay with performance. It will also better align our compensation structure to peers in the market and will allow us to reduce go-forward equity grants as a proportion of total compensation. We estimate the program will impact Q4 in the low teens millions of dollars, which represents a catch-up accrual for bonus payments we will make in Q1 FY 2025 for fiscal 2024 performance. Looking ahead, we will accrue for this program throughout each fiscal year. For the fourth quarter, we expect fully diluted shares outstanding to be approximately 306 million. For the full year, we are raising our revenue guidance to be $923 million to $925 million for year-over-year growth of 32% to 33%. As a result of the bonus program, for the full year, we are revising our non-GAAP operating income guidance range to $104 million to $106 million, representing a non-GAAP operating margin of 11%. This is consistent with the expectations we set at the start of the year that we would keep our 2024 non-GAAP operating margins roughly flat with 2023. Finally, for the full year, we expect fully diluted share count to be approximately 299 million. We are very pleased to be delivering this elevated level of growth at scale for FY 2024. Q4 is our seasonally largest quarter from a revenue perspective and has a significant influence on our outlook for 2025. While we're not providing 2025 guidance at this time, based on the trends that we are seeing, strength at the low and high end of the market and pressure on customer expansion that we've been discussing since the start of the year, we expect our 2025 revenue growth rate will decelerate modestly from our Q4 guidance. Due to the success of our go-to-market and product investment initiatives this year, we plan to continue to make choiceful investments in 2025 with particular focus on growing our international footprint. As a result, operating margin is projected to remain relatively consistent to 2024 as we continue to invest for growth in our large addressable market. We will provide formal guidance for fiscal 2025 on our Q4 call, along with additional details around our investments. In closing, these strong results are a clear indication that Klaviyo's platform is driving success for our customers. We're well positioned to continue our success, adding new customers, growing in the mid-market, expanding with existing customers and expanding internationally. We are excited about supporting our customers through their busiest season and driving a successful Black Friday, Cyber Monday weekend with Klaviyo. And with that, we'll open the call up for Q&A. Operator?