What London Drugs expects in the 850
London Drugs trades on X12 4010 over AS2. Beyond the base standard, watch these:
How EDISQ maps it
The certified London Drugs 850 map loads when you enable the partner — fields auto-map from NetSuite, QuickBooks, Dynamics, and 33 other systems, validation runs against London Drugs's spec before transmission, and the sandbox replays London Drugs test scenarios until everything passes.
Common rejection reasons
Nearly all 850 rejections trace to reference data, not syntax: identifiers that don't match London Drugs's cross-references, echoed fields dropped from the original PO, or timing that misses the program window. EDISQ flags each before London Drugs ever sees the document.
Sample London Drugs 850
A representative 850 interchange addressed to London Drugs — envelope, body segments, and control totals:
1ISA*00* *00* *ZZ*ACMESUPPLY *ZZ*LONDONDRUGS *260101*1200*U*00401*000000001*0*P*>~ 2GS*PO*ACMESUPPLY*LONDONDRUGS*20260101*1200*1*X*004010~ 3ST*850*0001~ 4BEG*00*SA*PO12345**20260101~ 5REF*DP*056~ 6DTM*002*20260110~ 7N1*ST*LONDON DRUGS 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 London Drugs use?
X12 4010, delivered over AS2. The certified map tracks London Drugs's current companion guide.
How do I test a London Drugs 850?
The sandbox generates realistic London Drugs 850 scenarios against your live mapping — free, unlimited, invisible to London Drugs.
What does it cost?
Per document only: first 25/month free, then from $0.50, decreasing with volume. No partner or mapping fees.