GSA Advantage · EDI 850

The GSA Advantage 850 Purchase Order, explained

What GSA Advantage expects in the 850 — the order a trading partner sends you. Process same day, never re-key — and how EDISQ's certified map handles it from your ERP.

Connect to GSA Advantage free 850 glossary guide

What GSA Advantage expects in the 850

GSA Advantage trades on X12 4010 over VAN. Beyond the base standard, watch these:

Scheduleorders arrive under GSA Schedule contracts — the contract number rides every PO
Ship-tosagency destinations vary order to order; there is no stable store list

How EDISQ maps it

The certified GSA Advantage 850 map loads when you enable the partner — fields auto-map from NetSuite, QuickBooks, Dynamics, and 33 other systems, validation runs against GSA Advantage's spec before transmission, and the sandbox replays GSA Advantage test scenarios until everything passes.

Common rejection reasons

Nearly all 850 rejections trace to reference data, not syntax: identifiers that don't match GSA Advantage's cross-references, echoed fields dropped from the original PO, or timing that misses the program window. EDISQ flags each before GSA Advantage ever sees the document.

Sample GSA Advantage 850

A representative 850 interchange addressed to GSA Advantage — envelope, body segments, and control totals:

1ISA*00*          *00*          *ZZ*ACMESUPPLY     *ZZ*GSAADVANTAGE   *260101*1200*U*00401*000000001*0*P*>~
2GS*PO*ACMESUPPLY*GSAADVANTAGE*20260101*1200*1*X*004010~
3ST*850*0001~
4BEG*00*SA*PO12345**20260101~
5REF*DP*056~
6DTM*002*20260110~
7N1*ST*GSA ADVANTAGE DC 5093*92*5093~
8PO1*1*24*EA*9.75**UP*012345678905~
9PID*F****ACME WIDGET 24CT~
10PO1*2*12*EA*14.50**UP*012345678912~
11PID*F****ACME GADGET 12CT~
12CTT*2~
13SE*11*0001~
14GE*1*1~
15IEA*1*000000001~

FAQ

Which 850 version does GSA Advantage use?

X12 4010, delivered over VAN. The certified map tracks GSA Advantage's current companion guide.

How do I test a GSA Advantage 850?

The sandbox generates realistic GSA Advantage 850 scenarios against your live mapping — free, unlimited, invisible to GSA Advantage.

What does it cost?

Per document only: first 25/month free, then from $0.50, decreasing with volume. No partner or mapping fees.