Which of the following is optional while making a createDSRSummaryByTransaction call using eBay FeedBack API?

Which one is not a Merchandising API call?

What will the following API call return? http://svcs.ebay.com/MerchandisingService?OPERATION-NAME=getMostWatchedItems &SERVICE-NAME=MerchandisingService &SERVICE-VERSION=1.1.0 &CONSUMER-ID=YourAppIDHere &RESPONSE-DATA-FORMAT=XML &categoryId=625

Which arguments are required in an AddFixedPriceItem API call of eBay Trading Data Web Services?

Which one is optional while making a createDSRSummaryByCategory call using FeedBack API?

What will happen if we provide 24 comma separated ItemIDs to the ItemIDs parameter of a GetItemStatus API call of eBay Shopping Web Service?

Which notification is sent to a subscribing user when another buyer places a higher maximum bid than his own highest bid and he no longer remains the current highest bidder?

Which Client API call will you use to retrieve public alert messages?

eBay offers several listing types to accommodate the selling needs, styles, and approaches of different sellers. Which of the following listing types are supported by the eBay?

An EndOfAuction notification is sent when the auction of an item ends. An auction ends either when its duration expires or the item is purchased with Buy It Now.

Feedback API is supported by eBay Sandbox environment.