Once an invoice is in [Reconciled] state, no amendments can be made. The invoice needs to be re-opened, it will then revert to an Open status and edits can be made.
To do this, please follow the below steps.
From [Dashboard], go to [Documents] [Invoices], click on the [Reconciled] tab. Search for the invoice in the 'Search for Invoices' field.
2. Click on the invoice number and open the body of the invoice. Once inside,
click on the yellow [Reopen] button, as below.
3. Make any necessary edits. When the edits are complete and the invoice balances, click the yellow [Complete] button, as below. The invoice will now move to [Flagged] status, and can be adjusted.
View help article: Approve Flagged Invoices