Walmart 856 ASN
to CSV Converter
Convert Walmart 856 ASN (Advance Ship Notice) files to CSV. Walmart requires 856 ASNs for ALL shipments before arrival at DCs. Missing or inaccurate ASNs result in chargebacks and impact your OTIF score. Verify your 856 files with PlainEDI before sending.
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TL;DR
Convert Walmart 856 ASN (Advance Ship Notice) files to CSV. PlainEDI converts Walmart 856 files to CSV in seconds—upload your EDI file, preview the first 10 rows free, then export the full CSV for $9 (single file) or $3.90 per file (10-pack). No EDI software required.
Why Convert Walmart 856 to CSV?
Verify 856 ASN accuracy before sending to Walmart to avoid chargebacks
Confirm SSCC labels match the ASN carton data
Check shipped quantities match the 850 PO and your inventory
Validate tracking numbers and carrier information
Audit ASN compliance for Walmart receiving accuracy metrics
Walmart 856 Tips & Best Practices
Key insights for working with Walmart ASN files:
Send Before Arrival: 856 must be transmitted before the truck arrives at Walmart DC.
SSCC Accuracy: Every SSCC in your 856 must match physical carton labels exactly.
Shipped Quantity: Must match what you actually put on the truck. Variances = chargebacks.
PO Number Reference: PRF01 segment must match the original 850 PO number.
Carton Details: HL loops show hierarchy (shipment > order > pack > item). Ensure correct nesting.
Frequently Asked Questions
What happens if my Walmart 856 ASN is wrong?
Walmart imposes chargebacks for ASN errors through their SQEP (Supplier Quality Excellence Program). Fees vary based on violation severity and can range from a few dollars per carton to hundreds of dollars per ASN. ASN errors also impact your OTIF (On-Time In-Full) score and supplier relationship. Always verify 856 accuracy before sending.
What is an SSCC and why does Walmart require it in the 856?
SSCC (Serial Shipping Container Code) is an 18-digit barcode on each carton. It uniquely identifies each carton in your shipment. Walmart DCs scan SSCCs to match physical cartons to your 856 ASN. If the SSCC on the carton doesn't match the 856, the carton is rejected and you're charged.
Can I send one 856 for multiple Walmart POs?
Yes, if you're shipping multiple POs on one truck, you can include all POs in a single 856 using separate HL loops for each order. The PRF segment in each order loop references the specific 850 PO number. PlainEDI extracts each PO as a separate row in the CSV.
Ready to Convert Walmart 856 Files?
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