AS2 certificate guides
Fix it, then prevent it
Straight answers to the questions EDI admins search at the worst possible moment — plus how to make the next rollover boring.
My AS2 certificate expired — what now?
What breaks, how to recover fast, and how to keep it from happening again.
How to roll over an AS2 certificate without an outage
The old/new overlap window, partner notification, and the cutover order that keeps traffic flowing.
AS2 "decryption failed" or certificate mismatch
Why a partner can't decrypt your messages, and how to confirm both sides hold the right certificate.
AS2 certificate rollover checklist
A printable, step-by-step checklist for a zero-downtime certificate swap.