The document describes how to check your license if you have an "expired license" error message YY50004 "License has expired for Vendor &1 Product &2 Release &3".
Release: K1EBAS04400-8.5-2E-400 Toolkit
You can check your product expiration date at any time by issuing the command, YDSPLICPRD from the command line.
This command displays the products authorized on your AS/400. The list will include a product description, release level and expiry/expiration date.
If you have questions about the expiration date or need new codes, please contact the GSC Department via CA Support Online or call 1-800-225-5224.