Convert EDI 850 Purchase Order to Compliant EDI 856 ASN

Upload your customer’s 850 PO, enter your Carrier SCAC and BOL #, and automatically generate a valid S→O→T→P→I 856 Advance Ship Notice with synchronized GS1-128 carton labels.

Drop your file below, check the order, then download for ShipStation & 4x6" Labels.

1Load your order file
2Check it and match your SKUs

Drop your EDI order file here

.edi, .x12 or .txt. The file is read on your computer and is not uploaded.

Now showing

walmart-850-crossdock.edi

No file handy? Open a sample:

No chargeback risks found. This order passes every check.

Checked against the Walmart supplier guide for EDI 850.

Detected Cross-Dock SDQ allocations (6 store-level splits verified against PO102).
Walmart Dept #0018 & Vendor #123456789 verified.

Purchase Order Summary & Line Items

Purchase Order #

4500991288

Order Date

11/09/2026

Dept # / Vendor #

Dept 0018 · Vendor 123456789

Order Total

$2,305.00 USD

Ship-To Warehouse / DC

WALMART DC 6094G-RDC

5801 SW REGIONAL AIRPORT BLVD

BENTONVILLE, AR 72712

Location Code: 0078742035260

Shipping Dates & Payment Terms

Earliest Ship Date:11/12/2026

Latest Ship Date:11/18/2026

Payment Terms:2/10 NET 30 · FOB PP

Multi-Store Order Detected: Automatically split items by store location

Split rows by Store # (6 rows)

Order / Store #	Retailer Item # / UPC	Item Description	Qty	Unit Price	Line Total
PO-4500991288-STORE-0101	Item: 554433221 UPC: 012345678905	ORGANIC COTTON BATH TOWEL ROYAL BLUE	25 EA	$12.50	$312.50
PO-4500991288-STORE-0102	Item: 554433221 UPC: 012345678905	ORGANIC COTTON BATH TOWEL ROYAL BLUE	35 EA	$12.50	$437.50
PO-4500991288-STORE-0103	Item: 554433221 UPC: 012345678905	ORGANIC COTTON BATH TOWEL ROYAL BLUE	40 EA	$12.50	$500.00
PO-4500991288-STORE-0101	Item: 554433299 UPC: 012345678912	LUXURY WAFFLE ROBE WHITE XL	20 EA	$18.00	$360.00
PO-4500991288-STORE-0102	Item: 554433299 UPC: 012345678912	LUXURY WAFFLE ROBE WHITE XL	20 EA	$18.00	$360.00
PO-4500991288-STORE-0103	Item: 554433299 UPC: 012345678912	LUXURY WAFFLE ROBE WHITE XL	20 EA	$18.00	$360.00

Total Units: 160 across 2 items

Items Subtotal: $2330.00

Allowance / Charge: -$25.00

Net Order Total: $2305.00

Download for your software

Pick where the order is going, then download. Files are ready for Excel, QuickBooks, Shopify or a thermal printer.

Fulfillment order file ready to upload to ShipStation, Shippo, or your 3PL warehouse system.

Field mapping table: which EDI segment fills which column (for IT & bookkeepers)

EDI 850 Purchase Order to EDI 856 ASN Turnaround Mapping

Deterministic segment-to-column mapping rules enforced by our client-side X12 engine

Source X12 Segment / Element	Sample Raw Value	Target ERP / CSV Column	Transformation & Validation Logic
850 ISA06 ↔ ISA08	925485US00 ↔ 5551234567	856 ISA08 ↔ ISA06	Swaps Sender and Receiver IDs while preserving strict 15-char ISA padding (106 bytes).
850 BEG03 & BEG05	4500991288 / 20261109	856 PRF01 & PRF04 (Order HL)	Links the Order (O) hierarchy node directly to the originating PO number and date.
850 REFDP & REFIA	0018 / 123456789	856 REFDP & REFIA	Echoes mandatory retail department and vendor numbers inside the Order HL loop.
850 PO101..PO115	PO11100EA12.50...	856 HL(P) MAN*GM + HL(I) LIN/SN1	Assigns a unique 20-digit SSCC-18 barcode to each carton and maps PO1 quantities to SN102.

Critical Chargeback & Import Pitfalls We Prevent

Common EDI mistakes that trigger $250+ retailer fines or accounting balance errors

Broken HL02 Parent Pointers in Hand-Built ASNs

Risk: Immediate 997 / 824 Rejection

Every HL segment must reference its exact parent HL01 ID (Item -> Pack -> Tare -> Order -> Shipment).

Our generator builds a contiguous, mathematically verified HL tree and sets CTT01 to the exact node count.

Mismatched MAN*GM Barcode vs Physical Carton Label

Risk: $250+ Per Carton Fine

Generating an 856 ASN in one tool and printing barcode labels in another often causes SSCC-18 sequence drift.

Generate both your 856 X12 file and 4x6" thermal PDF labels from the same Turnaround modal.

Invalid Modulo 10 Check Digit on MAN*GM

Risk: Receiving Dock Rejection

Guessing the 20th digit of MAN*GM*00... causes laser scanners at Walmart/Target DCs to fail.

Our engine computes the exact GS1 Modulo 10 check digit for every pallet and carton.

How to Turn an EDI 850 PO into an 856 ASN in 30 Seconds

Zero middleware setup — complete in under 60 seconds

1. Load Your Buyer’s EDI 850 Purchase Order

Drop your 850 file into the workbench above.

2. Click "850 → 856 ASN + 810 + 4x6 Labels"

Enter your Carrier SCAC (e.g., ODFL), BOL #, Tracking #, and GS1 Company Prefix.

3. Download Both the .EDI 856 File & 4x6" Label PDF

Upload the 856 .edi file to your VAN/portal and print the matching 4x6" labels on your Zebra/Rollo printer.

Frequently Asked Technical Questions

ANSI X12 specification details, retail companion rules, and ERP import answers

Does it support both SOPI (no pallets) and SOTPI (with pallets) hierarchies?

Yes. Our turnaround engine generates the standard SOTPI / SOPI structure with BSN05=0001 accepted by Walmart, Target, and Amazon.

Are the generated 856 files validated against SE01 and CTT rules?

Yes. Every generated 856 ASN is automatically verified by our Retailer Compliance Linter with zero errors.