iSupplier created Invoices have frozen Header Amount; hence, unable to update (after manual addition
PO was created in Nov 2017 without Tax line. Tax is not applicable I'm Nov 2017.
iSupplier creates Invoice in Jan 2018 without Tax line, referring that PO.
Tax in levied from Jan 2018; so, in Invoice Workbench, Tax lines were added manually. This creates imbalance between Lines total and Header Amount.
Now, Invoice Header Amount is frozen, making it impossible to increase the Header Amount (after the manual addition of Tax lines).
How to unfreeze the Header Amount field to update it? Or, is it the standard functionality in EBS?
Looking for the advice of Experts! Thanks in advance!
Regards
Lakshman