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."