PO failed to Transfer across to Invoice/ PO not zeroing

If you do not use the PO Lookup to copy lines from the PO to the invoice, they will not be affected. As a user you can type the PO# on an invoice line and status. This will not affect the PO UNLESS the line was imported via the PO Lookup window

Also, if no PO lines are coming across onto an invoice, check the other tabs such as Rental, Accommodation, Hire etc

If a failed PO transfer occurs, the first thing you should check is the Status of each line. To do this:

Run an Input Control Report from Invoice Inquiry using the Transaction number of the invoice OR the vendor as the filter.

Each line transferred will have a Status value on the Report. These will appear as follows:

I - (Ignore): Lines marked as IGNORE will not change the values on the PO. Any changes to these PO's will need to be made manually from PO Maintenance.
S - (Subtract): Lines marked as S will subtract their amounts from the PO.
C - (Clear): Lines marked as C will clear the entire amount from the PO even if the amount didn't match.

If the lines in the report have been marked correctly (i.e. with a I, S or C) then check to make sure there haven't been any changes to the PO from PO Maintenance.

To do this, open PO Maintenance and highlight the PO. Then click the Change button and select the Log tab to see an entire log of the changes made to the PO for each line item.