Unable to confirm a PO from a PR

Hi,

Does someone has already see this error: " The source document lines cannot be finalized until the status is Confirmed"
I have create a Purchase requisition that has been approved. I then create a purchase order from the PR.

When i try to confirm the PO i had that error? What is missing? Thanks

I have seen this error as well from time to time. It does not happen with any frequency but I would like to know if anyone has a solution for this error and has a solution?

PO was created from PR. PO was approved through workflow. All financial dimensions are present on all PO lines and budget check was successful.

“The source document lines cannot be finalized until the status is Confirmed.”

“The state of the source document or source document line could not be updated.”

“An error occurred during update.”