Unable to Edit custom field data after E-invoicing

Unable to Edit custom field data after E-invoicing

Hello,

I am trying to edit a custom filed data in invoice module after pushing through IRP portal. But Following Alert is prompted "You cannot edit this transaction as it has been e-Invoiced. To make any changes, you can cancel this transaction or mark it as cancelled."

The custom field is Air Way bill Number which is received after Invoicing. Edits to pushed transactions have been enabled.