PDF and XML Invoices, can I send it together from Epicor?

I wonder if Advanced Print Module’s SSRS Routing/Breaking lets you do that, we just got it, but haven’t deep dived into it yet. (its fairly inexpensive).

In addition you might need the Electronic Compliance Module, see some of the responses from @JeffLeBert on this thread.

That would be my guess… unless you are doing the Email via a BPM then there are code snippets floating around that show how to attach one or more files to the Email (BPM Side).