Making Changes to a Purchase Credit: Editing, Unposting, Unallocating & Deleting a Credit
Updated 31 October 2026
You can correct a Purchase Credit as long as it isn’t locked by a reconciled refund, a submitted VAT return or your lock date. Every change is recorded in the Audit History and the Ledger Entries.
The basic rule: undo things in reverse order
- If the credit has been refunded, remove the refund first. See Making Changes to a Purchase Refund.
- If it has been allocated to invoices, click Unallocate. This creates no ledger entries; it puts the amount back on the invoices and the credit.
- Click Unpost. Aedon makes equal and opposite ledger entries and the credit goes back to Draft.
- Correct it and post it again, or delete it.

The Allocation History and Refunds & Audit History tabs show what has been done with the credit, so you know what to undo.
When it can’t be changed
- Included in a submitted VAT return: it can’t be unposted or deleted. Correct it with a new transaction in a later VAT period.
- Dated before the lock date: it can’t be unposted until your finance controller moves the lock date back.
If you still can’t make the change you need, please raise a case and we’ll help.























