Thank you Matt for your reply.
I will have to check with AD administration to see what fields are available and unreserved for other IDM attributes. Yes I am using the provisioning framework.
Some context to my situation: Currently the customer's naming conventions for SAP usernames and AD usernames are unaligned. An exercise needs to be done to tie SAP & AD usernames to a single MSKEYVALUE, changing the "userid" in AD and/or "username" in SAP is not an option. HCM will be the leading system in this use case. Any Ideas from your side on how to approach this?
Thanks again,
Akhil