Vendor Invoice Number Missing from P.O. History

Vendor Invoice Number Missing from P.O. History
If a Vendor Invoice number doesn’t show in the P.O. History tab (or on the Inventory record), it wasn't properly approved. Additionally, the item will appear on the Receiving Report (A/P Not Invoiced) further indicating there was no approval of the P.O. from A/P Open Item Maintenance. The step of approving a P.O. during the A/P Invoice posting process is what “ties” the paid invoice to the P.O.  
Below is the step needed to correct this issue, which involves processing a "Mock" Invoice as described below.

To correct this, enter an A/P Invoice (known as a “mock” invoice.) Navigate to Accounts Payable > Open Item Maintenance > Enter Vendor ID > Manually Enter Invoice. At the Invoice Number field, enter a number using a near identical number as the original, but make it slightly different. In this example, the original invoice was SHAW123, so we’ll use SHAW123* as the mock invoice number. This time, the User should approve the P.O. Line, typing in the correct cost as it shows on the Vendor Invoice, and hit Accept as indicated in the screenshot below:





In the A/P Open Item Final Entry screen, finish entering the Invoice as you normally would, making sure the Balance fields are all zero. Click Add and Accept to finalize the process of the mock invoice. Do not add charges to a job, and do not select the item for payment, as you won't be issuing a check. The system will consider the Invoice paid based on the zero Balance.

The process of entering the mock invoice / approving the P.O. line will correct the missing invoice number in P.O. History, on the Inventory Record, and clear it off the Receiving Report (A/P Not Invoiced).