Prepayment journals cannot be amended directly once they have been created from a purchase invoice.
If changes are required, the recommended approach is to:
  1. Reverse the purchase invoice linked to the prepayment journal.
  2. Copy the invoice, make the necessary adjustments to the prepayment schedule or invoice contents as desired.
  3. Resubmit the invoice and rerun the prepayment automation.


This ensures the journals are regenerated correctly and remain properly linked to the updated invoice.
Important Notes:
  • If no prepayments have not been released yet, you can simply unpost the invoice, make the required changes, and resubmit it.
  • If you make a posting attribute correction (e.g., cost centre or department) to the purchase invoice, this will not update any prepayment journals already released. However, it will apply to any future journals yet to be released.
  • Reversing the purchase invoice will also reverse all associated prepayment journals.