Enter/Modify Posting Proposal Tax Information
Explanation
This activity is used to modify tax codes and tax amounts of the invoices
that have already been registered and preliminarily posted. 
Prerequisites
- IFS/Supplier Invoice Work Flow must have been installed.
 - An invoice should exist with a posting proposal. (The tax code and tax
amount can be modified on the posting proposal until the posting lines are
authorized.)
 - The tax codes used in the invoice lines should have the tax receiving
method set to Final Posting, in the Tax Codes window. 
 - The invoice should have the PrelPosted, PrelPostedAuth, PaidPrelPosted,
or PartlyPaidPrelPosted status.
 
System Effects
- The tax amount of the invoice will be modified according to the change
you made. 
 - The total gross amount on the invoice will remain unchanged.