An unpaid, unposted invoice will not have an option to be adjusted. If the GL distribution tab is still uneditable, ensure the invoice is not approved:

1. In Records, Invoices, open the Invoice.

2. On the Invoice tab, change the status drop-down menu from Approved to Pending.

3. Save the invoice.

4. On the GL distribution tab, make any changes needed.

5. Save and close the record.