Resources
Learn EDI in plain language
Guides written for operators, not standards committees — the same explanations Signal uses inside the product.
Production delivery to trading partners runs over AS2 and SFTP. Custom connections start in Lab, use Certification for real partner testing, and enter Production only after partner sign-off and go-live approval. Platform status
SignalEDI User Series
Learn with the SignalEDI User Series
Short walkthroughs of partner setup, documents, billing and everyday work. Follow the series in order or choose the task you need.
Watch: SignalEDI in 2 Minutes Mandate In, Connect BuildsFor the mandate on your desk
EDI requirements by retailer
What Whole Foods, Target, Kroger, and Amazon each actually require — kept current.
Surviving retailer chargebacks
The compliance-program mechanics behind penalties, and the windows that matter.
EDI error codes (AK905 and friends)
What rejections mean in English and how each one gets fixed.
For developers
API reference
Documents, partners, validation, webhooks — with runnable examples.
Public playground
Validate an X12 document in the browser, no account needed.
EDI test lab
Paste or upload a synthetic file and run production validators plus a partner simulator.
MCP server docs
Use the MCP package as an agent-facing integration control plane, with current public availability limited to synthetic evaluation.
Pharmaceutical & DSCSA
Pharmaceutical EDI explained
Wholesaler X12 for brands and specialty suppliers — the transaction sets you'll actually see.
DSCSA traceability readiness
The EPCIS boundary explained — what DSCSA requires and where EDI hands off.
Pharmaceutical wholesalers EDI
McKesson, Cardinal Health, Cencora — each wholesaler's requirements, kept current.
EDI 852 product activity reporting
Reporting inventory and sales activity to trading partners, segment by segment.
Pharmaceutical chargebacks (844/849)
Contract debits explained — how chargeback claims and disputes actually work.
Can't find your question?
The chat on every page answers EDI questions free — customer or not.