ERS Supplier Invoice Attachment

Dear all,

I wanted to add custom fields to Automatically generated supplier invoice, however since there is no Badı for supllier invoice, I cannot add required fields to output. Firstly ı would like to ask is there another way to add custom fields to output?

I would like to add attachment to the supplier invoice,what wouold be the the way to do it?

Thanks and regards,

Daniela