DEX, UCS, and EDI explained for distributors

DEX, UCS, and EDI get thrown around as if they're interchangeable. They're not — and knowing which one an account needs saves you painful surprises at the door.

The 30-second version

• DEX (Direct Exchange): device-to-device invoice and receiving data handoff at the store.
• UCS: the message standard that rides underneath DEX.
• EDI: broader electronic document exchange (orders, invoices, ASNs) between back-office systems, common with big chains.

Which one you actually need

Independent and mid-size accounts often just need clean digital invoices and a signature. Larger chains may mandate DEX at receiving or EDI for ordering and invoicing. The mistake is assuming one covers all your accounts.

Build for both

Pick tools that can produce a clean door-step invoice for small accounts and speak DEX or EDI where a chain requires it. Retrofitting later is the expensive path.