API Call Warning Messages for Schema Migration

As of late March, U.S. developers still making API calls in the legacy XML API, legacy REST API and/or eBay SDK for Windows version 2.6 or earlier will begin receiving warning messages via the API.

International developers will begin receiving these warning messages as of mid-April whenever an API call that is not compliant with the unified schema is made.

If you are still using the legacy XML API, legacy REST API, and/or eBay SDK for Windows version 2.6 or earlier as of these dates, you will want to log these warning messages so you can discover which of your calls are not yet compliant with the unified schema. Additionally, you may want to prevent these warning messages from displaying to your customers.