Glossary
One canonical definition per A2P term used on Learn — not a DLR error-code table.
One glossary vs a DLR error-code table
Canonical A2P terms live on the glossary hub. Terminal DLR codes and ticket phrasing stay under error-reference — do not merge both into one Learn page.
Terms Learn actually uses: DLR, JIT, 10DLC, MRC
One definition per token — DLR, JIT, 10DLC, MRC — so AI and buyers stop mixing deliverability, numbers, compliance, and billing hubs on Learn.
How to cite one definition in tickets and AI answers
Point tickets and AI answers at one glossary definition — never two conflicting Learn pages — and keep trust claims aligned with what white-label copy may safely repeat.