More than $3 trillion have been invested in digital transformation initiatives.
But as IDC research shows us, only 26% of the investments have delivered meaningful ROI.
As one CIO said to me, my goal with the Now Platform is to enable my colleagues to perform their top 50 tasks in a single environment that provides a consumer-like experience.
We surpassed 1,000 customers with ACV over $1 million.
We landed our largest deal ever with our largest customer who has now crossed over $40 million in ACV.
And we're raising full-year guidance today.
We're driving sustainable growth well on our way to $10 billion and beyond.
One of the largest streaming services in the world seamlessly upgraded their ServiceNow environment this past weekend with 0 downtime.
Our top 20 deals included three or more products.
ITSM was included in 17 of the top 20 deals with customers choosing ITSM Pro in 16 deals.
ITOM was included in 18 of the top 20 deals.
13 of the top 20 deals included CSM.
Eight of those deals were greater than $1 million.
We now have nine federal customers over $10 million in ACV.
We've seen nearly 800 downloads of our Safe Workplace apps.
ServiceNow helped the league facilitate screening for more than 2,600 league staff, vendors and guests who entered the NBA and WNBA bubble in Florida and successfully processed more than 13,000 essential documents.
We are bullish on our long-term outlook and our path to $10 billion and beyond.
We were humbled to recently be recognized as the company with the best leadership team in an anonymous survey of more than 10,000 employees across the industry.
Q3 subscription revenues were $1.091 billion, representing 29% year-over-year constant currency growth.
Q3 subscription billings were $1.081 billion, representing 24% year-over-year adjusted growth driven by the great execution from our sales team.
Remaining performance obligations, or RPO, ended the quarter at approximately $7.3 billion, representing 28% year-over-year constant currency growth.
And current RPO was approximately $3.8 billion, representing 30% year-over-year constant currency growth.
Our best-in-class renewal rate improved quarter-over-quarter to 98%, demonstrating the resilience of our business as the Now Platform remains a mission-critical part of our customers' operations.
As Bill highlighted, our sales teams continued to win bigger deals in Q3, including our largest ever $13 million ACV deal.
We closed 41 deals greater than $1 million in ACV in the quarter, and what's more, nine of those were with net new customers.
We now have over 1,000 customers paying us more than $1 million of ACV.
Q3 operating margin was 26%, a 400 basis point beat versus our guidance driven by our strong top line outperformance, lower T&E expenses as a result of COVID and about 150 basis points of marketing spend that shifted from Q3 into Q4.
Our free cash flow margin was 19%, up 500 basis points year over year driven by lower T&E spend in capex in the quarter as well as strong collections.
The highly affected industries we outlined earlier in the year, which represented about 20% of our business and include areas such as transportation, hospitality, retail and energy, continue to see macro headwinds but remain steady customers of ServiceNow.
We closed six new deals over $1 million in these affected industries.
We're raising our subscription revenues range to between $4.257 billion and $4.262billion, representing 31% year-over-year constant currency growth.
We are raising our subscription billings range to between $4.78 billion and $4.8 billion, representing 26% to 27% year-over-year adjusted growth.
We continue to expect 2020 subscription gross margin of 86%, and we are raising our full-year 2020 operating margin from 24% to 24.5%.
We're raising our full-year 2020 free cash flow margin 200 basis points from 29.5% to 31.5%, reflecting the increase in our operating margin.
We expect subscription revenues between $1.155 billion and $1.160 billion, representing 27% year-over-year constant currency growth.
We expect subscription billings between $1.625 billion and $1.645 billion, representing 24% to 26% year-over-year adjusted growth.
For Q4, we expect a 21% operating margin, which includes about 150 basis points of marketing spend that shifted from Q3 into Q4 and some incremental investment into pipeline-generating activities to set us up for a strong and successful 2021.
Finally, we expect fourth quarter and full-year 2020 diluted weighted average outstanding shares of 201 million and 199 million, respectively.
I'm very excited about the traction we are seeing in our journey toward becoming a $10 billion revenue company and the defining enterprise software company of the 21st century.

Summary:
And we're raising full-year guidance today.
We're raising our subscription revenues range to between $4.257 billion and $4.262billion, representing 31% year-over-year constant currency growth.