Expert guides on AS2 connection testing, certificate management, EDI compliance, and troubleshooting common AS2 issues.
Choose the right AS2 encryption and signing algorithms. Covers 3DES vs AES, SHA-1 vs SHA-256, NIST recommendations, partner requirements, and mismatch errors.
Your AS2 message sends fine but no MDN comes back. Diagnose missing MDNs: async receipt URL issues, firewall blocks, sync timeouts, DNS failures, and more.
An honest technical comparison of AS2 and AS4 messaging protocols. Covers architecture, use cases, migration trade-offs, and when each protocol makes sense.
A practical compliance checklist for the November 2026 DSCSA deadline. Covers EPCIS, GS1 standards, serialization, verification routers, and AS2 data exchange.
Step-by-step OpenAS2 setup guide. Install the server, configure partnerships, manage certificates, send test messages, and troubleshoot common OpenAS2 errors.
Fix AS2 connection errors fast. Covers TLS handshake failures, HTTP errors (401, 403, 502), timeouts, DNS issues, cipher mismatches, and payload errors with exact commands.
Step-by-step guide to setting up an AS2 server. Covers software selection, certificate generation, partnership config, firewall rules, MDN settings, and end-to-end testing.
An honest comparison of AS2 and SFTP for B2B file transfer. When AS2 is required, when SFTP is simpler, and how to decide for your use case.
Diagnose and fix the most common AS2 certificate errors, from expired certs to format mismatches. Practical steps with OpenSSL commands you can run right now.
Step-by-step guide for suppliers setting up AS2 for Walmart EDI. Covers GEM mailbox registration, certificate exchange, testing, and common pitfalls.
When your VAN says 'our side is fine' and your partner's VAN says the same thing, you're the one stuck in the middle. Here's how to break the deadlock before it costs you $4,800 and three weeks.
The AS2 certificate validation checklist you wish you had last time a cert blew up your connection at 2am. Covers formats, key sizes, chain validation, expiry traps, and every common error message decoded.
DSCSA demands encrypted, signed, auditable data exchange across your entire pharma supply chain. Most AS2 configurations have gaps. This is the checklist to close them.
60% of MDN failures are algorithm mismatches. Here's how to diagnose AS2 MDN errors, sync/async confusion, signature verification, MIC mismatches, and fix them fast.
A battle-tested, step-by-step AS2 onboarding guide. Certificate exchange, endpoint config, test messages, MDN verification, go-live, with every gotcha called out before it bites you.
Six predictable reasons your AS2 test message just died, and the exact commands to fix each one before your trading partner even replies to your email.