When reading emails, the Supplier Communications Agent takes all email attachments into account. 

It should be possible to limit the attachments to be read to specific file formats (e.g. PDF) in order to prevent images in signatures from being read, for example, and incurring unnecessary Copilot credits.

In 99% of cases, order confirmations are PDFs. In the remaining 1%, confirmation is provided in the body of the email. In this respect, restricting the reading to PDF attachments (or offering this option) would make sense.