CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Revenue
Total revenue		$ 49,109	$ 41,283	$ 130,933	$ 115,048
Cost of revenue
Total cost of revenue		12,226	10,931	32,807	29,278
Gross profit		36,883	30,352	98,126	85,770
Operating expenses
Sales and marketing		28,450	23,162	64,898	60,385
Research and development		18,748	12,331	48,145	47,122
General and administrative		8,184	5,291	21,433	19,541
Total operating expenses		55,382	40,784	134,476	127,048
Loss from operations		(18,499)	(10,432)	(36,350)	(41,278)
Interest income		129	1,136	997	3,115
Other (expense) income, net		1,721	(402)	4,163	(498)
Net loss before provision for income taxes		(16,649)	(9,698)	(31,190)	(38,661)
Provision for income taxes		203	98	456	283
Net loss		$ (16,852)	$ (9,796)	$ (31,646)	$ (38,944)
Class A Common Stock
Operating expenses
Net loss attributable to common shareholders, basic and diluted (in dollars per share)		$ (0.23)	$ (0.27)	$ (0.64)	$ (1.11)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)		68,648,229	30,132,463	43,480,533	28,478,395
Redeemable Convertible A-1 Common Stock
Operating expenses
Net loss attributable to common shareholders, basic and diluted (in dollars per share)		$ (0.10)	$ (0.27)	$ (0.52)	$ (1.11)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)		6,666,665	6,666,666	6,666,665	6,666,666
Class B Common Stock
Operating expenses
Net loss attributable to common shareholders, basic and diluted (in dollars per share)		$ (0.13)	$ 0	$ (0.12)	$ 0
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)		3,499,992	0	3,499,992	0
Subscription
Revenue
Total revenue	[1]	$ 42,699	$ 34,629	$ 114,248	$ 98,627
Cost of revenue
Total cost of revenue		7,023	8,862	22,694	23,493
Professional services
Revenue
Total revenue	[2]	6,410	6,654	16,685	16,421
Cost of revenue
Total cost of revenue		$ 5,203	$ 2,069	$ 10,113	$ 5,785

[1] Including related party revenue of $7,951, $9,865, $21,571 and $30,560 for the three and nine months ended January 31, 2021 and 2020, respectively.

[2] Including related party revenue of $0, $112, $0 and $210 for the three and nine months ended January 31, 2021 and 2020, respectively.