Retail Fulfillment
The routing guide is your operating contract. Treat it that way.
Walmart, Target, Costco, Kroger, Whole Foods, Home Depot, Lowe’s, Tractor Supply: each runs a routing guide that runs hundreds of pages and changes several times a year. Warpspeed handles EDI 850, 856, and 810 transmission, ASN timing, label compliance, palletization specs, and the chargeback dispute work that follows when something slips.
TL;DR
- EDI 856 ASN timing failures cost more than EDI 856 transmission setup ever did.
- Walmart OTIF, Target VPC, and Whole Foods compliance run on different scoring math.
- Drop ship vendor (DSV) programs need a different SLA stack than store replenishment.
One inventory pool, several allocation rules.
Brands selling through DTC, Amazon Vendor Central, and brick and mortar retail at the same time face a basic question: which channel gets the last unit? Allocation rules in our WMS answer that question on a SKU by SKU basis. Most clients reserve a buffer for retail commitments because the cost of a missed retail PO is higher than a missed DTC sale.
Inventory accuracy under 99% will eventually trigger an oversell event on one of your channels. Warpspeed cycle counts run weekly on A movers, monthly on B and C SKUs, and a full physical inventory once per fiscal year. Reports go to your AP team before they go to ours.
When a retailer changes its forecast (a Walmart EDI 830 planning schedule, for example), our planners receive the file inside our portal and can update allocation buffers without engineering work.
Common omnichannel allocation rules
| Channel | Allocation rule | Refresh cadence |
|---|---|---|
| DTC ecommerce | Real time | 2 minutes |
| Amazon Vendor Central | Reserve to forecast | Hourly |
| Walmart store replenishment | Reserve to PO | Per PO release |
| Target VMI | Vendor managed | Daily |
| Wholesale (case pack) | First come first served | On order |
| Marketplace (Shopify, Faire, etc.) | Real time | 5 minutes |
Three transactions that decide whether you keep the account.
EDI 850 is the purchase order. EDI 856 is the advance ship notice (ASN). EDI 810 is the invoice. The three move sequentially and the timing windows between them are the most common source of compliance failures.
Major retailers require the 856 ASN to transmit before the truck physically arrives at the receiving DC. Walmart requires it within one hour of pickup for most categories.[1] Target measures it on a Vendor Performance Card scored daily. Late ASN means the receiving team cannot pre-stage the dock door, slowing the entire chain. The chargeback follows automatically.
Warpspeed transmits EDI through SPS Commerce, TrueCommerce, or your existing VAN. We retain ASN proof of transmission timestamps for 36 months for audit. If a chargeback hits, our compliance team files the dispute within five business days, with documentation packaged.
EDI transactions by retailer (representative)
| Retailer | 850 lead time | 856 timing | 810 cadence |
|---|---|---|---|
| Walmart | 7 to 14 days | Within 1 hour of pickup | Per shipment |
| Target | 10 to 21 days | Pre receipt | Per shipment |
| Costco | 14 to 30 days | 24 hours pre receipt | Per shipment |
| Whole Foods (Amazon) | 5 to 10 days | Pre receipt | Per shipment |
| Home Depot | 7 to 14 days | Pre receipt | Per shipment |
DSV is retail with ecommerce SLAs and retail consequences.
Drop ship vendor (DSV) programs let retailers list your SKU on their site without holding inventory. The retailer takes the order. You ship it directly to the consumer using their branded packing slip and label. The clock starts the moment the order hits your queue and most programs require shipment within 48 hours.
DSV chargebacks are a different category from store replenishment. Wayfair charges back for late shipment, missed cancel by date, and customer complaints. Home Depot DSV requires API integration through Salsify or CommerceHub. Lowe’s drop ship runs through their MarketPlace portal with strict label specs.
Warpspeed runs DSV programs as a separate workflow inside ShipOS. Orders hit a DSV queue. The system pulls the retailer’s packing slip template, generates the carrier label using their account number, and ships within the SLA window. If we miss, the dispute team files inside one business day.
T+0
Order received from retailer
API or EDI transmission to ShipOS DSV queue.
T+15min
Pick wave released
Retailer template loaded for packing slip and label.
T+4hr
Picked, packed, labeled
QC pass on retailer specific compliance items.
T+24hr
Shipped via retailer carrier account
Tracking transmitted back to retailer system within minutes.
T+48hr
Delivered or in transit, ASN closed
Compliance dashboard updates in real time.
Most chargebacks are preventable. Some are also disputable.
Walmart’s On Time In Full (OTIF) program penalizes suppliers for missing delivery windows or quantity targets. The fine math is published in their supplier guidelines and the deductions show up directly on your remittance advice.[2] Target’s VPC (Vendor Performance Card) is similar in design.
Prevention starts with operational discipline: build orders against the routing guide, not against your prior shipping habits. Validate cartons against case pack quantities, GS1-128 labels against SSCC standards, pallet heights against retailer maximums (most large box retailers cap at 84 inches stacked).[3]
Disputes recover legitimate fines that were issued in error. Industry data from compliance specialists like SupplyPike suggests roughly 30 to 50% of deductions can be recovered through formal dispute, depending on category and retailer.[4] Warpspeed files disputes inside the retailer’s portal with backup documentation packaged from our WMS.
“The chargeback you do not dispute is the chargeback you accept. Both go on the same line of your P and L.”
Pallet builds that match the planogram, not the order.
Store replenishment is shipment building backwards. The pallet should land at the back door of a Walmart Supercenter and unpack onto the shelf in the order the planogram lays out. We build store ready pallets that match a shelf walk: high velocity SKUs at the open face, slow SKUs at the back, no mixed cases unless the retailer accepts them.
For grocery and natural foods accounts, we build pallets to FEFO (first expired, first out) with date code visibility on the pallet placard. Whole Foods and Sprouts both inspect for date code at receiving and reject pallets that fail the threshold.
Pallet labels follow GS1 SSCC standards (Serial Shipping Container Code), 18 digits, encoded as GS1-128 barcodes.[3] Most major retailers will not unload an unlabeled pallet, period.
Where the numbers come from
- [1]Walmart Supplier Center: ASN compliance and OTIF— Walmart, Inc.
- [2]Walmart On-Time, In-Full (OTIF) program— Walmart Supplier Help
- [3]GS1 US: SSCC and GS1-128 specifications— GS1 US
- [4]Retailer Deductions and Chargeback Recovery Benchmarks— SupplyPike
- [5]Target Vendor Performance and routing guide— Target Partners Online
- [6]Wayfair CastleGate and DSV documentation— Wayfair Partner Home
- [7]EDI X12 transaction set documentation— ASC X12
- [8]Retail supply chain compliance trends— Supply Chain Dive
Get a quote
Bring your routing guides. We will tell you what we can already do.
Walmart, Target, Costco, Whole Foods, Home Depot, Lowe’s, Wayfair: most of the major routing guides already live inside our compliance library.