Pay once · No Friday subscription
Separate every supplied add-on from the base WFS charge.
Included in the $9.00 Shelf Kit
WFS sellers, agencies, and finance teams checking whether explicitly supplied fulfillment add-ons stack to a redacted total charge before a human reviews current source classifications, rates, and statements.
Delivery: usually a structured result, workbook, or ZIP depending on the tool.
Friday performs arithmetic only on seller-redacted references, SKUs, dates, fulfilled units, base pick-and-pack fees, all four explicit applicability flags, seller-supplied surcharge rates, reported total charges, and thresholds you provide. It reads no Walmart account, WFS report, item record, invoice, or current rate table and infers no apparel, hazardous-material, low-retail-price, oversize, dimensional-weight, tax, fuel, or other classification or fee rule. A difference is a supplied-field review lead, not proof that Walmart charged incorrectly or that a credit is due. Friday files no dispute, does not publish listings, and changes no item, classification, shipment, inventory, fee, fulfillment setting, listing, or seller account.
Synthetic sample
{
"charge_count": 5,
"fulfilled_units": 24,
"total_recomputed_base_charge": 99.65,
"total_recomputed_additional_surcharge": 21.25,
"total_reported_fulfillment_charge": 121.1,
"total_recomputed_fulfillment_charge": 120.9,
"total_charge_discrepancy": 0.2,
"possible_overcharge_exposure": 1.0,
"possible_undercharge_exposure": 0.8,
"mismatch_count": 2,
"high_charge_count": 4,
"review_queue_preview": [
{
"priority_rank": 1,
"charge_reference": "NW-WFS-ADD-01",
"sku": "NW-APRON-01",
"applied_surcharges": [
"APPAREL"
],
"reported_per_unit_charge": 4.05,
"recomputed_per_unit_charge": 3.95,
"total_charge_discrepancy": 1.0,
"status": "review_mismatch"
},
{
"priority_rank": 2,
"charge_reference": "NW-WFS-ADD-02",
"sku": "NW-CLEANER-01",
"applied_surcharges": [
"HAZARDOUS_MATERIAL",
"LOW_RETAIL_PRICE"
],
"reported_per_unit_charge": 5.0,
"recomputed_per_unit_charge": 5.2,
"total_charge_discrepancy": -0.8,
"status": "review_mismatch"
}
],
"surcharge_type_summary_preview": [
{
"surcharge_type": "APPAREL",
"applicable_charge_count": 2,
"fulfilled_units": 15,
"recomputed_surcharge": 7.5
},
{
"surcharge_type": "OVERSIZE",
"applicable_charge_count": 1,
"fulfilled_units": 2,
"recomputed_surcharge": 6.0
}
],
"publish_status": "draft_needs_review",
"safety": "Arithmetic on seller-supplied base fees, applicability flags, surcharge rates, units, and charges only. It reads no Walmart account, infers no item classification, claims no charge is wrong, files no dispute, and changes no item, shipment, listing, inventory, fee, or account."
}
This sample uses synthetic facts. Your output is generated only from the facts you submit.
POST /v1/walmart/wfs/additional-fulfillment-surcharge-verification
Exact x402 price: $0.50. Use the public OpenAPI schema and Base USDC payment flow. The response returns a private job URL and temporary token.