If prepayment releases are only occurring on direct invoices, it's likely that the document type for PO-based invoices hasn't been included in the automation setup.

To resolve this:
- Add the PO-based document type to the automation configuration.
- Reload iplicit to ensure the changes are applied.
- Manually run the automation, making sure to adjust the date criteria to start from a date before the earliest expected journal. This ensures any missed prepayment releases from previous months are picked up.

Once these steps are completed, the system should release the prepayment journals for both direct and PO-based invoices as expected.
Note: Avoid skipping the date adjustment step, as it’s crucial for capturing historical entries. If you have any other invoice documents that are custom these would need to be included too.