How to fix AP Invoice WF error - Inventory quantity is not equal to purchase order quantity Identify the invoice and confirm WF errors has "Stopped (error): Update has been canceled. Inventory quantity is not equal to purchase order quantity. Please try to adjust inventory quantity in the original purchase order -> Line details -> Inventory -> Quantity. Or try to cancel quantity in delivery reminder. Insuffici" Confirm that the Purchase order against the invoice was cancelled using the close short action located on the PO ( Purchase > Actions > Close Short ) When PO is confirmed to be cancelled by PO team ,next step is to have AP team recall the Invoice from WF and post Use the Reopen ( Purchase > Actions > Reopen ) to open order against the PO .NB this will OPEN all PO Lines status in cancelled status Once post of invoice is successful , please close the PO either using the close short functionality