Error:The JE line can't be accounted until Purchasing transaction references is fully accounted

Summary:

Our Accounts Payables create accounting is giving this error.

"The journal entry line can't be accounted until the Purchasing transaction that it references is fully accounted. Details: Verify that accounting entries were created for the Purchasing transaction with the identifiers PO Number: 902XXX; Supplier: XXXXXXXXX; Status: Open; PO Type: Purchase Order".

Content (please ensure you mask any confidential information):

"The journal entry line can't be accounted until the Purchasing transaction that it references is fully accounted. Details: Verify that accounting entries were created for the Purchasing transaction with the identifiers PO Number: 902XXX; Supplier: XXXXXXXXX; Status: Open; PO Type: Purchase Order".