As of April 30, 2021 and January 31, 2021, we had letters of credit in the aggregate amount of $27.0 million in connection with our operating leases and voluntary disability insurance (VDI) program, which were primarily issued under the available sublimit for the issuance of letters of credit in conjunction with a secured credit agreement as disclosed in Note 9.

As of April 30, 2021, future payments under non-cancellable contractual purchases, which were not recognized on our condensed consolidated balance sheet and relate primarily to infrastructure services and IT software and support services costs, are as follows, shown in accordance with the payment due date (in thousands):

Fiscal years ending January 31:
Remainder of 2022	$	7,363
2023		38,104
2024		4,860
2025		434
2026		211,234
Thereafter		—
	$	261,995

Our contracts for infrastructure services and IT software, which have terms ranging from 2 to 8 years, support our long-term goals of improving gross margin. In addition to the purchase obligations included above, as of April 30, 2021, we recognized a total of $9.2 million related to non-cancellable contractual purchases, which were included in accounts payable, accrued expenses and other current liabilities, and other long-term liabilities on the condensed consolidated balance sheet. $3.5 million, $3.8 million, and $1.9 million is due to be paid in the remainder of the fiscal year ending January 31, 2022 and the fiscal years ending January 31, 2023 and 2024, respectively.

From time to time, we are subject to claims that arise in the ordinary course of business, including matters we initiate to defend ourselves or our users by determining the scope, enforceability, and validity of third-party proprietary rights or to establish our proprietary rights. We investigate these claims as they arise and accrue estimates for resolution of legal and other contingencies when losses are probable and estimable. Although the results of litigation and claims cannot be predicted with certainty, we believe there was not at least a reasonable possibility that we had incurred a material loss with respect to such loss contingencies as of April 30, 2021. Additionally, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources, and other factors, regardless of the outcome of such litigation.

We include service level commitments to our customers warranting certain levels of uptime reliability and performance and permitting those customers to receive credits in the event that we fail to meet those levels. In addition, our customer contracts often include (i) specific obligations that we maintain the availability of the customer’s data through our service and that we secure customer content against unauthorized access or loss, and (ii) indemnity provisions whereby we indemnify our customers for third-party claims asserted against them that result from our failure to maintain the availability of their content or securing the same from unauthorized access or loss. To date, we have not incurred any material costs as a result of such commitments.

Our arrangements generally include certain provisions for indemnifying customers against liabilities if our products or services infringe a third party’s intellectual property rights. It is not possible to determine the maximum potential amount under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, we have not incurred any material costs as a result of such obligations and have not accrued any material liabilities related to such obligations in the condensed consolidated financial statements. In addition, we indemnify our officers, directors and certain key employees while they are serving in good faith in their respective capacities. To date, there have been no claims under any indemnification provisions.