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Equity (Tables)
 12 Months Ended
Jan. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Shares Reserved For Future Issuance
The Company had reserved shares of common stock for future issuance as follows (in thousands):

January 31, 2023January 31, 2022
2012 Equity Incentive Plan:
Options outstanding35,212 42,043 
Restricted stock units outstanding2,521 4,530 
2020 Equity Incentive Plan:
Options outstanding642 — 
Restricted stock units outstanding13,039 5,082 
Shares available for future grants52,989 45,446 
2020 Employee Stock Purchase Plan:
Shares available for future grants11,046 8,209 
Total shares of common stock reserved for future issuance115,449 105,310 
Option Activity Rollforward
A summary of stock option activity and activity regarding shares available for grant under the Plans during the fiscal years ended January 31, 2023, 2022, and 2021 is as follows:
Shares
Available for Grant
(in thousands)		Number of Options Outstanding
(in thousands)		Weighted-
Average
Exercise Price		Weighted-Average Remaining Contractual Life
(in years)		Aggregate
Intrinsic
Value
(in thousands)
Balance—January 31, 2020
412 80,903 $6.21 8.6$1,546,313 
Shares authorized54,970—
Shares ceased to be available for issuance under the 2012 Plan(15,696)—
Options granted(877)877$34.83 
Options exercised—(13,799)$3.90 
Options canceled3,406(3,406)$7.04 
Repurchase of unvested common stock40—
RSUs granted(9,553)—
RSUs forfeited168—
Balance—January 31, 2021
32,87064,575$7.04 7.7$17,138,896 
Shares authorized14,397—
Options exercised—(20,903)$6.08 
Options canceled1,629(1,629)$6.80 
RSUs granted(4,026)—
RSUs forfeited576—
Balance—January 31, 2022
45,44642,043$7.53 6.9$11,283,299 
Shares authorized15,619—
Options granted(642)642$207.56 
Options exercised—(6,118)$6.50 
Options canceled713(713)$8.02 
RSUs granted(10,788)—
Shares withheld related to net share settlement of RSUs1,149—
RSUs forfeited1,492—
Balance—January 31, 2023
52,98935,854$11.27 5.9$5,237,549 
Vested and exercisable as of January 31, 2023
30,261$8.20 5.8$4,492,574 
Option Rollforward Schedule
A summary of stock option activity and activity regarding shares available for grant under the Plans during the fiscal years ended January 31, 2023, 2022, and 2021 is as follows:
Shares
Available for Grant
(in thousands)		Number of Options Outstanding
(in thousands)		Weighted-
Average
Exercise Price		Weighted-Average Remaining Contractual Life
(in years)		Aggregate
Intrinsic
Value
(in thousands)
Balance—January 31, 2020
412 80,903 $6.21 8.6$1,546,313 
Shares authorized54,970—
Shares ceased to be available for issuance under the 2012 Plan(15,696)—
Options granted(877)877$34.83 
Options exercised—(13,799)$3.90 
Options canceled3,406(3,406)$7.04 
Repurchase of unvested common stock40—
RSUs granted(9,553)—
RSUs forfeited168—
Balance—January 31, 2021
32,87064,575$7.04 7.7$17,138,896 
Shares authorized14,397—
Options exercised—(20,903)$6.08 
Options canceled1,629(1,629)$6.80 
RSUs granted(4,026)—
RSUs forfeited576—
Balance—January 31, 2022
45,44642,043$7.53 6.9$11,283,299 
Shares authorized15,619—
Options granted(642)642$207.56 
Options exercised—(6,118)$6.50 
Options canceled713(713)$8.02 
RSUs granted(10,788)—
Shares withheld related to net share settlement of RSUs1,149—
RSUs forfeited1,492—
Balance—January 31, 2023
52,98935,854$11.27 5.9$5,237,549 
Vested and exercisable as of January 31, 2023
30,261$8.20 5.8$4,492,574 
Schedule of Unvested RSU Rollforward
A summary of RSU activity during the fiscal years ended January 31, 2023, 2022, and 2021 is as follows:

Number of Shares
(in thousands)		Weighted-Average Grant Date Fair Value
per Share
Unvested Balance—January 31, 2020
— $— 
Granted9,553 $123.71 
Vested(37)$50.71 
Forfeited(168)$64.13 
Unvested Balance—January 31, 2021
9,348 $125.06 
Granted4,026 $250.46 
Vested(3,186)$109.44 
Forfeited(576)$169.74 
Unvested Balance—January 31, 2022
9,612 $180.08 
Granted10,788 $180.65 
Vested(3,348)$165.30 
Forfeited(1,492)$206.02 
Unvested Balance—January 31, 2023
15,560 $181.17 
Schedule of Unvested RSA Rollforward A summary of restricted common stock activity outside of the Plans during the fiscal years ended January 31, 2023, 2022, and 2021 is as follows:
Outside of the Plans
Number of Shares
(in thousands)		Weighted-Average Grant Date Fair Value
per Share
Unvested Balance—January 31, 2020
1,604 $2.06 
Vested(862)$2.03 
Unvested Balance—January 31, 2021
742 $2.11 
Vested(362)$2.10 
Unvested Balance—January 31, 2022
380 $2.11 
Granted409 $229.13 
Vested(361)$2.10 
Unvested Balance—January 31, 2023
428 $219.26 
Valuation Assumptions Schedule The following table summarizes the assumptions used in estimating the fair value of stock options granted to employees and a non-employee director during the fiscal years ended January 31, 2023 and 2021:
Fiscal Year Ended January 31,
20232021
Expected term (in years)6.06.0
Expected volatility50.0 %37.2 %
Risk-free interest rate1.8 %1.0 %
Expected dividend yield— %— %
Valuation Assumptions Other Than Stock Options Schedule
The following table summarizes the assumptions used in estimating the fair value of employee stock purchase rights granted under the 2020 ESPP during the fiscal years ended January 31, 2023, 2022, and 2021:

Fiscal Year Ended January 31,
202320222021
Expected term (in years)0.50.50.5
Expected volatility
58.9% - 74.8%
37.3% - 49.5%
60.1 %
Risk-free interest rate
0.9% - 3.8%
0.1 %0.1 %
Expected dividend yield— %— %— %
Share-based Compensation Schedule
Stock-based compensation included in the consolidated statements of operations was as follows (in thousands):
Fiscal Year Ended January 31,
202320222021
Cost of revenue$106,302 $87,336 $33,642 
Sales and marketing246,811 185,970 97,879 
Research and development407,524 232,867 99,223 
General and administrative100,896 98,922 70,697 
Stock-based compensation, net of amounts capitalized861,533 605,095 301,441 
Capitalized stock-based compensation29,417 24,174 2,072 
Total stock-based compensation$890,950 $629,269 $303,513