I’m using VISMA e-conomic to do my bookkeeping/invoicing. They launched an eInvoice system some time ago which I would expect was PEPPOL based, or something similar. They enabled it by default without informing anyone.

A couple of my clients didn’t see the invoice in my monthly email, so they asked me to resend it. I re-sent the PDF manually.

To address OP’s question: I don’t expect it will change much for me. The customer configuration will let me choose whether the invoice is sent by email or another way, and I’ll still create my invoice by clicking “book and send” in e-conomic.