Trigger Adjustment postings when Expense type is changed.

All,

I have a situation where I would like to trigger and adjustment when the expense type is changed. The issue is that the GL account for the two expense types are the same and no adjustment is triggered. while the Expense type, wage type, and descriptions are different. all of this is by design.

As the GL interface is not triggered the table PTRV_ROT_AWKEY- Assignment of Trip Results to Posting Doc. Number and Line- is not updated with the modified details.

How can we trigger adjustment postings when the expense type is changed?

Best Regards,

Martin