INVENTORY_LEASE_INVALID
The mailbox claim cannot use the supplied inventory authority: the lease is missing, expired or owned by a different session.
Classification
Application code. The wire value and spelling remain the same in every language. A registered code does not establish that its feature is active in every deployment.
Handling
Inspect the authoritative inventory and persisted grant/receipt. Resolve capacity or state conflicts without changing the grant identity. An uncertain response is not permission to issue the reward again.