Hi there, Osi70. The right menu for selecting a Purchase Order (PO) may not appear when creating a bill or check for several reasons.
One of them is that the PO may not be assigned to the same vendor for whom you're creating the bill or check. If the vendor doesn’t match, the PO will not appear in the drop-down menu.
Another reason is that the PO has already been applied to a different expense transaction, or may have been fully closed. Once a PO is closed, it’s no longer available for selection.
To resolve this, we recommend reviewing the details of your PO in the Expense transaction page to see if it’s linked to the correct vendor or if the status is closed.

This thread remains open for further questions you have.