Hi all does anyone know how to make the Amortization Start Date and Amortization end date as Mandatory fields against expense lines in Vendor bills and Vendor credits? Its not a field available to make mandatory when you customise the vendor bill form

You should be able to use a workflow to do this, if that does not work than it would be possible via scripting

@roberth Thanks!

On the custom form I think you can check mandatory If not wf only work with expense sublist