Traditional APIs: Selling

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Trading API returning Akamai 503 for any POST with X-EBAY-API-CALL-NAME header

Has anyone else been hitting this since around 2026-05-23 06:00 UTC? Our Trading API integration has been completely down for 30+ hours, and after extensive testing I can reproduce the issue is at the Akamai WAF layer, not in our code. Posting the fu...

eBay API Inventory and Order Data Randomly Failing to Sync With My Website After Traffic Increase

I recently integrated the eBay API into my website to synchronize product listings, inventory status, and order information automatically between my platform and eBay store. Initially, everything worked correctly and updates appeared almost instantly...

Coin grading requirements

The new coin grading requirements are a disaster for sellers. I NEVER list an uncertified coin's grade. The problem is that nonprofessional grading is extremely subjective and can be very misleading and deceptive. Good photography allows the buyer to...

Simple Delivery via Trading API (UK private sellers) — automatic or configurable?

Hi everyone,For UK private sellers, is Simple Delivery automatically applied to eligible listings created via the Trading API (no explicit flag/policy required)? If not, could you point me to the API documentation explaining how to enable/configure S...

Account Provisioning: Inventory API OAuth Tokens Rejected with 401

OAuth Token Authentication Failing for Inventory API - Seller Account Not Provisioned?Hello,I'm developing an automated inventory management system using the eBay Inventory API (REST).My OAuth implementation is complete and working, but all API calls...

locations information being sent to Linnworks incorrectly

We have been having problems with Linnworks and ebay for several months since they changed the ebay configurators settings on linnworks back in March.Since then, random selection of our listings with variations (single size items are not affected), a...

Trading API AddItem ConditionDescriptor for FREE_TEXT node

Does anyone know what the "Item.ConditionDescriptors.ConditionDescriptor" container for "FREE_TEXT" is supposed to look like? ... Text 27503 ?;... Name and Value constitute a pair; therefore, both must always be specified. Note that Value is a numeri...

LMS_ADD_FIXED_PRICE_ITEM failing with error 10019: ShippingServiceCost is NULL even though shipping

I’m trying to publish an eBay fixed-price listing through the eBay feed flow and I’m stuck on the same failure repeatedly:- Publish result: `0 success, 1 failed`- eBay task IDs: `task-40-11305877645`, `task-40-13300462112`- eBay error: `10019`- Relev...

Market Place Insights API

Hi, I'm building a sports trading card collection management platform (Sports Collective, sports-collective.com) and would like to request access to the Marketplace Insights API to display fair market value estimates from historical sold listings to ...

Requesting access to Marketplace Insights API

EPS image upload timeout/failure 14-APR-2026

I'm running into an EPS photo ingestion issue today. I'm getting consistent timeouts from the EPS service. I'll send over a handful of files with no issue, then the next file will result in a timeout.Here's the request:{ "call": "createImageFromFile"...

(sandbox)Ebay API Explorer issues

No matter what I do I keep getting this error code of (system error)I'm in the TradingAPI trying to do VerifyAddItem.I've also tried AddItem and AddFixedPriceItem, using the defaults Ebay provides and nothing works.Anyone else having issues?What am I...

Category is invalid

Hi, I got issue related to API ReviseFixedPriceItemRequest, I try to update new category for an active listing but it now returns error "Category is not valid".Here's the request: false 0 true Does not apply Does not apply A50305 Rain Bird Ty...

eBay store maintenance

have a percentage off entire store button or set dollar amount for the whole store for a time set time period feature.

15-Year Seller Can't Get Developer Account Approved, Need Help

I'm hoping someone from eBay can help me out. I've been selling on eBay for 15 years with 100% positive feedback and have never had any account issues. I'm trying to register for the Developer Program so I can build a simple private tool to manage my...

Developer Technical Support

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