I have passed App Check and my Trading API call limits has been raised to 1.5Million calls per day but why I am getting the error 21919144 "You have exceeded your maximum call limit of xxxx for item per day. Try back after 1 day" in my AddItem call?
You're hitting the seller level call limit (NOT an app limit ) introduced in Trading 793 release as below :
Listing calls and 1200 Revise Listing calls per 30 seconds, which equates to about 3.5 million calls per 24-hour period. Add Listing calls include AddItem, AddFixedPriceItem, AddItems, AddSellingManagerTemplate, VerifyAddItem, and VerifyAddFixedPriceItem. Revise Listing calls include ReviseItem, ReviseFixedPriceItem, and ReviseSellingManagerTemplate.
When the numbers of requests from a seller in the defined time window reaches the rate limit, the ErrorCode 21919144 is returned in the API response for the calls listed above.