Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$ (89,834)	$ (62,634)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,102	1,659
Amortization of deferred contract acquisition costs	7,975	4,375
Non-cash operating lease costs	682	766
Stock-based compensation expense	31,630	13,437
Other	288	(672)
Changes in operating assets and liabilities, net of effects of acquisition
Accounts receivable	14,779	6,317
Prepaid expenses and other assets	(5,208)	257
Deferred contract acquisition costs	(9,347)	(5,472)
Accounts payable	5,079	(2,211)
Accrued liabilities	190	2,724
Accrued payroll and benefits	(21,478)	1,291
Operating lease liabilities	(1,330)	(717)
Deferred revenue	13,626	9,702
Other liabilities	1,495	380
Net cash used in operating activities	(49,351)	(30,798)
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(2,808)	(780)
Purchases of intangible assets	(152)	0
Capitalization of internal-use software	(2,574)	(1,013)
Purchases of investments	(852,991)	0
Cash paid for acquisition, net of cash and restricted cash acquired	0	(3,449)
Net cash used in investing activities	(858,525)	(5,242)
CASH FLOW FROM FINANCING ACTIVITIES:
Payments of deferred offering costs	(186)	(1,826)
Proceeds from exercise of stock options	5,090	3,743
Net cash provided by financing activities	4,904	1,917
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	1,289
NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(902,972)	(32,834)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–Beginning of period	1,672,051	399,112
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–End of period	769,079	366,278
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest paid	5	263
Income taxes refunded, net of payments	(184)	(20)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Stock-based compensation capitalized as internal-use software	787	123
Property and equipment purchased but not yet paid	1,277	595
Issuance of restricted common stock	18	17
Deferred offering costs accrued but not yet paid	0	1,045
Issuance of common stock and assumed equity awards in connection with acquisition	$ 0	$ 120,319