You may have situations where you want to reverse a transaction for an invoice that has been posted through the Register to the Purchase Ledger. This could have been caused by incorrect postings to the wrong Supplier Account or into the wrong Financial Period.
This only relates to Transactions posted through the Purchase Invoice Register
You will be need to post a credit transaction via the Register and then reprocess if needed.
Go to Creditors, Purchase Invoice Register
Enter the Supplier and and Supplier Reference, tab down to the Dates section
Populate the Invoice Date, Due Date, Period and Currency Code
Tab down to the Control Value, set it to a negative value
Check the Credit? box
Save through, enter the invoice lines and post the transaction in the same way as the original Purchase Invoice.
Once a reversal has been posted, it is advisable to allocate this to the original, after which a new transaction can be posted with the correct information if necessary.