| API | Change Type | Release Date | Description |
|---|---|---|---|
| Orders | Added | 02/26/2026 | Added optional header parameter WM_SANDBOX in GET /v3/orders. |
| Orders | Added | 02/26/2026 | Added optional header parameter WM_SANDBOX in GET /v3/orders/released. |
| Orders | Added | 02/26/2026 | Added optional header parameter WM_SANDBOX in GET /v3/orders/{purchaseOrderId}. |
| Orders | Added | 02/26/2026 | Added optional header parameter WM_SANDBOX in POST /v3/orders/{purchaseOrderId}/acknowledge. |
| Orders | Added | 02/26/2026 | Added optional header parameter WM_SANDBOX in POST /v3/orders/{purchaseOrderId}/cancel. |
| Orders | Added | 02/26/2026 | Added optional header parameter WM_SANDBOX in POST /v3/orders/{purchaseOrderId}/shipping. |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Marketplace Sandbox API | Added | 02/18/2026 | ADDED 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 |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Fulfillment | Removed | 02/06/2026 | Removed request property payload/sellerOrderId in POST /v3/fulfillment/orders-fulfillments. |
| Assortment Recommendations | Added | 02/09/2026 | Added optional request property filterCriteria/isNewRecommendation in POST /v3/growth/assortment/recommendations. |
| Assortment Recommendations | Added | 02/09/2026 | Added optional request property filterCriteria/isTopGoGetItem in POST /v3/growth/assortment/recommendations. |
| Assortment Recommendations | Added | 02/09/2026 | Added optional response property payload/records/items/itemDetails/isTopGoGetItem in POST /v3/growth/assortment/recommendations (200). |
| Assortment Recommendations | Added | 02/09/2026 | Added optional request property filterCriteria/isNewRecommendation in PUT /v3/growth/assortment/recommendations/rejections. |
| Assortment Recommendations | Added | 02/09/2026 | Added optional request property filterCriteria/isTopGoGetItem in PUT /v3/growth/assortment/recommendations/rejections. |
| Assortment Recommendations | Added | 02/09/2026 | Added optional response property payload/records/items/itemDetails/isTopGoGetItem in GET /v3/growth/assortment/recommendations/variants (200). |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| On-request Reports | Added | 02/04/2026 | New INVENTORY_RECOMMENDATIONS report type added to the Get All Report Requests and Create Report Request APIs. |
| On-request Reports | Added | 02/04/2026 | Added enum value INVENTORY_RECOMMENDATIONS to response property reportType in GET /v3/reports/downloadReport (200). |
| On-request Reports | Added | 02/04/2026 | Added 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 Reports | Added | 02/04/2026 | Added non-success 401 response to GET /v3/reports/reportRequests and POST /v3/reports/reportRequests. |
| On-request Reports | Added | 02/03/2026 | New SEM_PERFORMANCE report type added to the Get All Report Requests and Create Report Request APIs. |
| On-request Reports | Added | 02/03/2026 | Added 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 Reports | Added | 02/03/2026 | Added 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. |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Returns | Added | 01/29/2026 | Added optional query parameter isWFSEnabled in GET /v3/returns. |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Items | Added | 01/22/2026 | New DELETE_ITEM feed type added in the Bulk Item Setup API.Added enum value DELETE_ITEM to query parameter feedType in POST /v3/feeds. |
| Fulfillment | Breaking | 01/22/2026 | Query 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. |
| Fulfillment | Removed | 01/22/2026 | Removed ParcelSubmitBookingResponse and LTLSubmitBookingResponse from the 200 response oneOf in POST /v3/fulfillment/inbound-shipments-booking. |
| Fulfillment | Removed | 01/22/2026 | Removed CancelParcelQuoteResponse and CancelLTLQuoteResponse from the 200 response oneOf in DELETE /v3/fulfillment/inbound-shipments-booking. |
| Fulfillment | Removed | 01/22/2026 | Removed ParcelGetQuoteResponse, LTLGetQuoteResponse, FTLGetQuoteResponse from the 200 response oneOf in GET /v3/fulfillment/inbound-shipments-quote. |
| Fulfillment | Removed | 01/22/2026 | Removed ParcelCreateQuoteResponse, LTLCreateQuoteResponse, FTLCreateQuoteResponse from the 200 response oneOf in POST /v3/fulfillment/inbound-shipments-quote. |
| Fulfillment | Removed | 01/22/2026 | Removed ParcelTrackingResponse, LTLTrackingResponse, FTLTrackingResponse from the 200 response oneOf in GET /v3/fulfillment/inbound-shipments-tracking. |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Recommendations | Breaking | 12/30/2025 | Removed endpoint GET /v3/wfs/recommendation/shipment-quantity without deprecation. |
| Recommendations | Added | 12/30/2025 | Added endpoint POST /v3/wfs/recommendation/shipment-quantity. |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Fulfillment | Removed | 12/16/2025 | Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/schedule in POST /v3/fulfillment/inbound-shipments-booking. |
| Fulfillment | Removed | 12/16/2025 | Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/equipmentCode in POST /v3/fulfillment/inbound-shipments-booking. |
| Fulfillment | Removed | 12/16/2025 | Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/equipmentType in POST /v3/fulfillment/inbound-shipments-booking. |
| Fulfillment | Removed | 12/16/2025 | Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/length in POST /v3/fulfillment/inbound-shipments-booking. |
| Fulfillment | Removed | 12/16/2025 | Removed request property /oneOf[subschema #2: LTL Quote]/payload/bookingDetails/unitDetails/items/protectionLevel in POST /v3/fulfillment/inbound-shipments-booking. |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Walmart+ SFF | New | 11/06/2025 | A new API for Bulk Item Enrollment for Walmart+ has been released. |
| Simplified Shipping Settings | Removed | 11/12/2025 | Removed 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 Settings | Removed | 11/12/2025 | Removed 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 Settings | Removed | 11/12/2025 | Removed enum value Ground from response property .../carriers/items/carrierService across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* (200). |
| Simplified Shipping Settings | Removed | 11/12/2025 | Removed enum value Walmart Shipping Services from response property .../carriers/items/carrierName across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* (200). |
| API | Change Type | Release Date | Description |
|---|---|---|---|
| Advertising | Required | 10/30/2025 | Made request property metadata/dailyBudget required in POST /v3/advertising/sem/campaigns. |
| Advertising | Changed | 10/30/2025 | Request property metadata/totalBudget became optional in POST /v3/advertising/sem/campaigns. |
| Advertising | Added | 10/30/2025 | Added optional response property data/items/allOf[#/components/schemas/Campaign]/dailyBudget in POST /v3/advertising/sem/campaigns/performance-summary (200). |
| Advertising | Added | 10/30/2025 | Added optional response property data/items/allOf[subschema #2]/dailyBudget in POST /v3/advertising/sem/campaigns/performance-summary (200). |
| Advertising | Added | 10/30/2025 | Added optional response property dailyBudget in GET /v3/advertising/sem/campaigns/{campaignId} (200). |
| Advertising | Added | 10/30/2025 | Added optional request property metadata/dailyBudget in PUT /v3/advertising/sem/campaigns/{campaignId}. |
| Simplified Shipping Settings | Changed | 10/30/2025 | Restricted request properties to enumerated values in POST /v3/settings/shipping/simplifiedshippingsettings/account: .../carriers/items/carrierName, .../carriers/items/carrierService, .../configurations/items/regions/items/regionCode, .../configurations/items/regions/items/regionName. |
| Simplified Shipping Settings | Changed | 10/30/2025 | Restricted request properties to enumerated values in PUT /v3/settings/shipping/simplifiedshippingsettings/account: .../carriers/items/carrierName, .../carriers/items/carrierService, .../configurations/items/regions/items/regionCode, .../configurations/items/regions/items/regionName. |
| Simplified Shipping Settings | Changed | 10/30/2025 | Restricted request properties to enumerated values in PUT /v3/settings/shipping/simplifiedshippingsettings/fulfillmentcenter: .../carriers/items/carrierName, .../carriers/items/carrierService, .../configurations/items/regions/items/regionCode, .../configurations/items/regions/items/regionName. |
| Simplified Shipping Settings | Added | 10/30/2025 | Added optional response property .../configurations/items/shippingCharge for both accountConfigs and shipNodeConfigs in GET /v3/settings/shipping/simplifiedshippingsettings (200). |
| Simplified Shipping Settings | Added | 10/30/2025 | Added optional request property .../configurations/items/shippingCharge in POST /v3/settings/shipping/simplifiedshippingsettings/account. |
| Simplified Shipping Settings | Added | 10/30/2025 | Added optional response property .../configurations/items/shippingCharge in POST /v3/settings/shipping/simplifiedshippingsettings/account (200). |
| Simplified Shipping Settings | Added | 10/30/2025 | Added optional request property .../configurations/items/shippingCharge in PUT /v3/settings/shipping/simplifiedshippingsettings/account. |
| Simplified Shipping Settings | Added | 10/30/2025 | Added optional response property .../configurations/items/shippingCharge in PUT /v3/settings/shipping/simplifiedshippingsettings/account (200). |
| Simplified Shipping Settings | Added | 10/30/2025 | Added optional request property .../configurations/items/shippingCharge in PUT /v3/settings/shipping/simplifiedshippingsettings/fulfillmentcenter. |
| Simplified Shipping Settings | Added | 10/30/2025 | Added optional response property .../configurations/items/shippingCharge in PUT /v3/settings/shipping/simplifiedshippingsettings/fulfillmentcenter (200). |
| Simplified Shipping Settings | Added | 10/30/2025 | Added enum values for carrierName in request and response across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* including Fedex, UPS, USPS, Walmart Shipping Services. |
| Simplified Shipping Settings | Added | 10/30/2025 | Added enum values for carrierService in request and response across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* including FEDEX_EXPRESS, FEDEX_2DAY_EXPRESS, FEDEX_GROUND_ECONOMY, FEDEX_HOME_DELIVERY, FEDEX_OVERNIGHT, UPS_2DAY_AIR, UPS_3DAY_SELECT, UPS_GROUND, UPS_NEXTDAY_AIR, UPS_SUREPOST, USPS_GROUND, USPS_PRIORITY_MAIL, USPS_PRIORITY_MAIL_EXPRESS, Ground. |
| Simplified Shipping Settings | Added | 10/30/2025 | Added enum values for regionName in request and response across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* including 48 State, AK and HI, APO/FPO, US Protectorates. |
| Simplified Shipping Settings | Added | 10/30/2025 | Added enum values for regionCode in request and response across GET/POST/PUT /v3/settings/shipping/simplifiedshippingsettings* including A, C, H, P. |
| Insights | Added | 10/30/2025 | Added optional response properties payload/performanceRiskLevel and payload/performanceStandard in GET /v3/insights/performance/cancellations/summary (200). |
| Insights | Added | 10/30/2025 | Added optional response properties payload/performanceRiskLevel and payload/performanceStandard in GET /v3/insights/performance/otd/summary (200). |
| Insights | Added | 10/30/2025 | Added optional response properties payload/performanceRiskLevel and payload/performanceStandard in GET /v3/insights/performance/refunds/summary (200). |
| Insights | Added | 10/30/2025 | Added optional response properties payload/performanceRiskLevel and payload/performanceStandard in GET /v3/insights/performance/srr/summary (200). |
| Insights | Added | 10/30/2025 | Added optional response properties payload/performanceRiskLevel and payload/performanceStandard in GET /v3/insights/performance/vtr/summary (200). |
| Seller Performance | Added | 10/28/2025 | Added response fields performanceRiskLevel and performanceStandard. |
| Seller Performance | Deprecated | 10/28/2025 | Deprecated response fields riskLevel and standard. Removal date will follow the API deprecation policy. |
| Seller Performance | Changed | 10/28/2025 | Updated label values in responses: "Meets Standard" changed to "Good"; "Needs Attention" changed to "Monitor"; "Urgent Review" changed to "Urgent." |
| Seller Performance | Changed | 10/28/2025 | Clarified threshold language: "99% or above," "95% or above," "90% or above," "2% or below," and "6% or below." |