Mass Update of Supplier On Purchase Order Documents

Hello All,

We have a requirement where in "Supplier" needs to updated on Purchase Order documents irrespective of the Document status. We are currently working on 11.5.10.

The following conditions to be addressed while performing this update,

a) Purchase Documents status can be in Approved,Closed And Final Closed.  Few PO Lines  belonging to a header can be partially received or closed.

b) Purchase Order documents are matched to Payable Invoices.

c) How to handle the  supplier number update on Payable invoices and Payments which are currently due and which are already processed.

Any pointers on this would be of great help and if possible can any one provide details of any standard programs and API to fulfill this change.