As of April 30, 2023 and January 31, 2023, we had letters of credit in the aggregate amount of $18.6 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 8.

Our purchase obligations relate primarily to infrastructure services and IT software and support services costs. As of April 30, 2023, future payments under non-cancellable contractual purchases, which were not recognized on our condensed consolidated balance sheet, are as follows, shown in accordance with the payment due date (in thousands):


Years ending January 31:
2024	$	4,451
2025		99,751
2026		6,290
2027		264,586
Total	$	375,078

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.

From time to time, we are subject to litigation and claims that arise in the ordinary course of business. We investigate litigation and 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, 2023.