Trying to create a fulfillment policy for eBay's standard envelope (eSE) | Fulfillment

chick3n13 · 2026-05-05T03:39:33.748000Z

Hello. I would appreciate some help if possible. I am trying to create a fulfillment policy in the sandbox environment. It is for using the eSE service. In the documentation (https://developer.ebay.com/api-docs/sell/static/seller-accounts/using-the-ebay-standard-envelope-service.html), I see that we can use: "shippingOptions": [ { "costType": "FLAT_RATE", "optionType": "DOMESTIC", "shippingServices": [ { "freeShipping": "true", "shippingCarrierCode": "USPS", "shippingServiceCode": "US_eBayStandardEnvelope" } ] } ] So I created this payload to use:{ "name": "Trading Cards - eBay Standard Envelope", "description": "Standard Envelope for items under $20", "marketplaceId": "EBAY_US", "categoryTypes": [ { "name": "ALL_EXCLUDING_MOTORS_VEHICLES", "default": true } ], "handlingTime": { "value": 3, "unit": "DAY" }, "shippingOptions": [ { "optionType": "DOMESTIC", "costType": "FLAT_RATE", "shippingServices": [ { "shippingCarrierCode": "USPS", "shippingServiceCode": "US_eBayStandardEnvelope", "freeShipping": true } ] } ], "localPickup": false } but I keep getting this error:{ "errors": [ { "errorId": 20403, "domain": "API_ACCOUNT", "category": "REQUEST", "message": "Invalid .", "longMessage": "Please select a valid shipping service.", "inputRefIds": [ "service" ], "parameters": [ { "name": "XPATH", "value": "DomesticItemShippingService[0].shippingService" } ] } ] } I added "localPickup" because I saw some post mentioning they added it and it worked for them. I tried changing handlingTime to 3 because in the GeteBayDetails call it says handling times are between 3 and 6 and nothing is working. In API Explorer, doing a getShippingServices returned: { "description": "eBay Standard Envelope for eligible items up to $20", "internationalService": false, "shippingCarrier": "EBAY_SEND", "shippingService": "US_eBayStandardEnvelope", "maxShippingTime": 6, "minShippingTime": 3, "shippingCategory": "STANDARD", "validForSellingFlow": true, "shippingCostTypes": [ "CALCULATED", "FLAT" ], "packageLimits": { "maxWeight": 3, "minWeight": 0, "weightUnit": "OUNCE", "maxLength": 11.5, "maxWidth": 6.13, "maxHeight": 1, "dimensionUnit": "INCH" }, "shipToLocations": [ { "description": "United States", "shippingLocation": "US" } ] }so I tried changing to EBAY_SEND as well and same service error.In getShippingCarriers, I get: { "description": "eBay Standard Delivery", "shippingCarrier": "eBay Standard Delivery" }so I tried eBay Standard Delivery as well and same issue. I also tried calling GeteBayDetails with DetailName=ShippingCarrierDetails and eBay's Standard Envelope is not even mentioned there. I feel like at this point I tried the example from the API docs and different values from the GET calls and I keep getting the same error. I tried different variations of the payload and all point to the same service error. I am able to create other policies. I also did opt in (hence why I am able to create other sample fulfillment policies). Could someone help me? Thanks!

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Trying to create a fulfillment policy for eBay's standard envelope (eSE) | Fulfillment | eBay Community