Changelog
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March 5, 2026

APIChange TypeRelease DateDescription
OrdersAdded03/05/2026Added enum value USPS First Class Mail to response property .../trackingInfo/carrierName/carrier in

- GET /v3/orders (200),
- GET /v3/orders/released (200),
- GET /v3/orders/{purchaseOrderId} (200),
- POST /v3/orders/{purchaseOrderId}/acknowledge (200),
- POST /v3/orders/{purchaseOrderId}/cancel (200),
- POST /v3/orders/{purchaseOrderId}/refund (200), and
- POST /v3/orders/{purchaseOrderId}/shipping (200).
OrdersAdded03/05/2026Added enum value USPS First Class Mail to request property orderShipment/.../trackingInfo/carrierName/carrier in POST /v3/orders/{purchaseOrderId}/shipping.

February 26, 2026

APIChange TypeRelease DateDescription
OrdersAdded02/26/2026Added optional header parameter WM_SANDBOX in GET /v3/orders.
OrdersAdded02/26/2026Added optional header parameter WM_SANDBOX in GET /v3/orders/released.
OrdersAdded02/26/2026Added optional header parameter WM_SANDBOX in GET /v3/orders/{purchaseOrderId}.
OrdersAdded02/26/2026Added optional header parameter WM_SANDBOX in POST /v3/orders/{purchaseOrderId}/acknowledge.
OrdersAdded02/26/2026Added optional header parameter WM_SANDBOX in POST /v3/orders/{purchaseOrderId}/cancel.
OrdersAdded02/26/2026Added optional header parameter WM_SANDBOX in POST /v3/orders/{purchaseOrderId}/shipping.

February 18, 2026

APIChange TypeRelease DateDescription
Marketplace Sandbox APIAdded02/18/2026ADDED a new API group, Simulations, with the following six endpoints:

- POST /v1/simulations/items
- GET /v1/simulations/items
- PUT /v1/simulations/items/{sku}
- GET /v1/simulations/items/{sku}
- POST /v1/simulations/orders
- DELETE /v1/v1/simulations/orders/{purchaseOrderId}/deliver

February 12, 2026

APIChange TypeRelease DateDescription
FulfillmentRemoved02/06/2026Removed request property payload/sellerOrderId in POST /v3/fulfillment/orders-fulfillments.
Assortment RecommendationsAdded02/09/2026Added optional request property filterCriteria/isNewRecommendation in POST /v3/growth/assortment/recommendations.
Assortment RecommendationsAdded02/09/2026Added optional request property filterCriteria/isTopGoGetItem in POST /v3/growth/assortment/recommendations.
Assortment RecommendationsAdded02/09/2026Added optional response property payload/records/items/itemDetails/isTopGoGetItem in POST /v3/growth/assortment/recommendations (200).
Assortment RecommendationsAdded02/09/2026Added optional request property filterCriteria/isNewRecommendation in PUT /v3/growth/assortment/recommendations/rejections.
Assortment RecommendationsAdded02/09/2026Added optional request property filterCriteria/isTopGoGetItem in PUT /v3/growth/assortment/recommendations/rejections.
Assortment RecommendationsAdded02/09/2026Added optional response property payload/records/items/itemDetails/isTopGoGetItem in GET /v3/growth/assortment/recommendations/variants (200).

February 5, 2026

APIChange TypeRelease DateDescription
On-request ReportsAdded02/04/2026New INVENTORY_RECOMMENDATIONS report type added to the Get All Report Requests and Create Report Request APIs.
On-request ReportsAdded02/04/2026Added enum value INVENTORY_RECOMMENDATIONS to response property reportType in GET /v3/reports/downloadReport (200).
On-request ReportsAdded02/04/2026Added enum value INVENTORY_RECOMMENDATIONS to response property reportType in GET /v3/reports/reportRequests (200), POST /v3/reports/reportRequests (200), and GET /v3/reports/reportRequests/{requestId} (200); also added to query parameter reportType in GET/POST /v3/reports/reportRequests.
On-request ReportsAdded02/04/2026Added non-success 401 response to GET /v3/reports/reportRequests and POST /v3/reports/reportRequests.
On-request ReportsAdded02/03/2026New SEM_PERFORMANCE report type added to the Get All Report Requests and Create Report Request APIs.
On-request ReportsAdded02/03/2026Added enum value SEM_PERFORMANCE to response property reportType in GET /v3/reports/downloadReport (200), GET /v3/reports/reportRequests (200), POST /v3/reports/reportRequests (200), GET /v3/reports/reportRequests/{requestId} (200), GET /v3/reports/schedules (200), POST /v3/reports/schedules (200), GET /v3/reports/schedules/{scheduleId} (200), and PUT /v3/reports/schedules/{scheduleId} (200).
On-request ReportsAdded02/03/2026Added enum value SEM_PERFORMANCE to query parameter reportType in GET /v3/reports/reportRequests, POST /v3/reports/reportRequests, GET /v3/reports/schedules, and POST /v3/reports/schedules.

January 29, 2026

APIChange TypeRelease DateDescription
ReturnsAdded01/29/2026Added optional query parameter isWFSEnabled in GET /v3/returns.

January 22, 2026

APIChange TypeRelease DateDescription
ItemsAdded01/22/2026New DELETE_ITEM feed type added in the Bulk Item Setup API.
Added enum value DELETE_ITEM to query parameter feedType in POST /v3/feeds.
FulfillmentBreaking01/22/2026Query parameter status in GET /v3/fulfillment/inbound-shipments is now an enum. Added values: ALLOCATED, AWAITING_DELIVERY, CANCELED, CANCELLED, CANCELLED_GDM, CANCELLED_INIT, CLOSED, CREATE_GDM_PUBLISH_FAILED, ENRICHMENT_FAILED_GDM, FAILED, FAILED_AND_CANCELED, FAILED_GDM, FINALIZED, MOVED, PROCESSED, PROCESSED_GDM, RECEIVED, RECEIVING_IN_PROGRESS, SUBMITTED, TRANSFER_IN_PROGRESS.
FulfillmentRemoved01/22/2026Removed ParcelSubmitBookingResponse and LTLSubmitBookingResponse from the 200 response oneOf in POST /v3/fulfillment/inbound-shipments-booking.
FulfillmentRemoved01/22/2026Removed CancelParcelQuoteResponse and CancelLTLQuoteResponse from the 200 response oneOf in DELETE /v3/fulfillment/inbound-shipments-booking.
FulfillmentRemoved01/22/2026Removed ParcelGetQuoteResponse, LTLGetQuoteResponse, FTLGetQuoteResponse from the 200 response oneOf in GET /v3/fulfillment/inbound-shipments-quote.
FulfillmentRemoved01/22/2026Removed ParcelCreateQuoteResponse, LTLCreateQuoteResponse, FTLCreateQuoteResponse from the 200 response oneOf in POST /v3/fulfillment/inbound-shipments-quote.
FulfillmentRemoved01/22/2026Removed ParcelTrackingResponse, LTLTrackingResponse, FTLTrackingResponse from the 200 response oneOf in GET /v3/fulfillment/inbound-shipments-tracking.

December 30, 2025

APIChange TypeRelease DateDescription
RecommendationsBreaking12/30/2025Removed endpoint GET /v3/wfs/recommendation/shipment-quantity without deprecation.
RecommendationsAdded12/30/2025Added endpoint POST /v3/wfs/recommendation/shipment-quantity.

December 18, 2025

APIChange TypeRelease DateDescription
FulfillmentRemoved12/16/2025Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/schedule in POST /v3/fulfillment/inbound-shipments-booking.
FulfillmentRemoved12/16/2025Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/equipmentCode in POST /v3/fulfillment/inbound-shipments-booking.
FulfillmentRemoved12/16/2025Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/equipmentType in POST /v3/fulfillment/inbound-shipments-booking.
FulfillmentRemoved12/16/2025Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/length in POST /v3/fulfillment/inbound-shipments-booking.
FulfillmentRemoved12/16/2025Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/protectionLevel in POST /v3/fulfillment/inbound-shipments-booking.

November 12, 2025

APIChange TypeRelease DateDescription
Walmart+ SFFNew11/06/2025A new API for Bulk Item Enrollment for Walmart+ has been released.
Simplified Shipping SettingsRemoved11/12/2025Removed enum value Ground from request property .../carriers/items/carrierService in POST /v3/settings/shipping/simplifiedshippingsettings/account, PUT /v3/settings/shipping/simplifiedshippingsettings/account, and PUT /v3/settings/shipping/simplifiedshippingsettings/fulfillmentcenter.
Simplified Shipping SettingsRemoved11/12/2025Removed enum value Walmart Shipping Services from request property .../carriers/items/carrierName in POST /v3/settings/shipping/simplifiedshippingsettings/account, PUT /v3/settings/shipping/simplifiedshippingsettings/account, and PUT /v3/settings/shipping/simplifiedshippingsettings/fulfillmentcenter.
Simplified Shipping SettingsRemoved11/12/2025Removed enum value Ground from response property .../carriers/items/carrierService across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* (200).
Simplified Shipping SettingsRemoved11/12/2025Removed enum value Walmart Shipping Services from response property .../carriers/items/carrierName across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* (200).