When we update a Project and PO with a new Final Approver and/or Interim Approver in SAP-PS for some reason the PO reverts back to the previous approver which causes issues when invoicing and vendors getting paid timely. We have reported this issue time and time again for years and nobody in the past has been able to find out what triggers this change. The solution for this has been that we update the PO’s when this happens and we have also granted access to a few users to be able to update the approvers on the PO’s. Please take a look at my attached example the shows the difference between the project and PO. We have updated this PO and it has reverted back
