CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2019
Revenue
Total revenue		$ 183,217	$ 156,666	$ 91,605
Cost of revenue
Total cost of revenue		44,519	38,787	30,386
Gross profit		138,698	117,879	61,219
Operating expenses
Sales and marketing	[1]	96,991	94,974	37,882
Research and development		68,856	64,548	37,318
General and administrative		33,109	29,854	22,061
Total operating expenses		198,956	189,376	97,261
Loss from operations		(60,258)	(71,497)	(36,042)
Interest income		1,255	4,251	3,508
Other income (expense), net		4,011	(1,752)	(546)
Net loss before provision for income taxes		(54,992)	(68,998)	(33,080)
Provision for income taxes		704	380	266
Net loss		$ (55,696)	$ (69,378)	$ (33,346)
Class A Common Stock
Operating expenses
Net loss attributable to common stockholders, basic and diluted (in dollars per share)		$ (0.90)	$ (1.94)	$ (1.32)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)		56,677,947	29,133,157	18,662,237
Redeemable Convertible A-1 Common Stock
Operating expenses
Net loss attributable to common stockholders, basic and diluted (in dollars per share)		$ (0.55)	$ (1.94)	$ (1.32)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)		6,666,665	6,666,665	6,666,665
Class B Common Stock
Operating expenses
Net loss attributable to common stockholders, basic and diluted (in dollars per share)		$ (0.35)	$ 0	$ 0
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)		3,499,992	0	0
Subscription
Revenue
Total revenue	[2]	$ 157,366	$ 135,394	$ 77,472
Cost of revenue
Total cost of revenue	[3]	31,315	31,479	24,560
Professional services
Revenue
Total revenue	[4]	25,851	21,272	14,133
Cost of revenue
Total cost of revenue		$ 13,204	$ 7,308	$ 5,826

[1] Including related party sales and marketing expense of $44, nil and nil for the fiscal years ended April 30, 2021, 2020 and 2019, respectively.

[2] Including related party revenue of $30,557, $40,425, and $56 for the fiscal years ended April 30, 2021, 2020, and 2019, respectively.

[3] Including related party cost of revenue of $56, nil and nil for the fiscal years ended April 30, 2021, 2020 and 2019, respectively.

[4] Including related party revenue of $4,825, $292, and nil for the fiscal years ended April 30, 2021, 2020, and 2019, respectively.