Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$ (284,998)	$ (199,392)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	20,097	5,862
Amortization of deferred contract acquisition costs	25,871	14,551
Non-cash operating lease costs	2,547	2,180
Stock-based compensation expense	118,318	62,193
Other	(6,066)	849
Changes in operating assets and liabilities, net of effects of acquisition
Accounts receivable	(12,699)	(26,322)
Prepaid expenses and other assets	(11,072)	(6,916)
Deferred contract acquisition costs	(38,163)	(28,436)
Accounts payable	(1,377)	(5,658)
Accrued liabilities	261	9,900
Accrued payroll and benefits	(18,786)	19,774
Operating lease liabilities	(4,296)	(2,288)
Deferred revenue	40,609	60,037
Other liabilities	(1,464)	3,663
Net cash used in operating activities	(171,218)	(90,003)
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(4,827)	(3,268)
Purchases of intangible assets	(247)	(520)
Capitalization of internal-use software	(10,279)	(4,733)
Purchases of investments	(1,728,162)	0
Maturities of investments	778,555	0
Cash paid for acquisition, net of cash and restricted cash acquired	(281,032)	(3,449)
Net cash used in investing activities	(1,245,992)	(11,970)
CASH FLOW FROM FINANCING ACTIVITIES:
Payments of deferred offering costs	(186)	(7,416)
Repayment of debt	0	(20,000)
Proceeds from exercise of stock options	11,282	8,630
Proceeds from issuance of common stock under the employee stock purchase plan	8,682	0
Proceeds from initial public offering and private placement, net of underwriting discounts and commissions	0	1,388,562
Net cash provided by financing activities	19,778	1,369,776
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	1,146
NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(1,397,432)	1,268,949
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–Beginning of period	1,672,051	399,112
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–End of period	274,619	1,668,061
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest paid	17	406
Income taxes paid, net of refunds	215	156
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Stock-based compensation capitalized as internal-use software	2,668	4,280
Property and equipment purchased but not yet paid	205	443
Vesting of early exercised stock options	18	566
Deferred offering costs accrued but not yet paid	0	186
Issuance of common stock and assumed equity awards in connection with acquisition	186,332	120,319
Conversion of redeemable convertible preferred stock to common stock upon initial public offering	$ 0	$ 621,139