Supplier Bank Account update

Summary

Letting Supplier create or update Bank Account at Site Level

Content

Good Morning!

Have a quick question and wanted to check if anyone had similar request from clients as this is the third time I am seeing this requirement. I know in Supplier Portal, Suppliers are only allowed to update records at header level. Which is fine, but one information which is Bank account has no relevance at header but Site. The question is can this be done or an enhancement request be created so that Supplier can select a BU and assign a Bank account to that BU on an ongoing basis using Supplier Portal. Currently Supplier adds a bank account it goes to header,