What is the purpose of SetSellingManagerTemplateAutomationRule Trading API call?

EndFixedPriceItem API call of eBay Trading Data Web Services is used to end the specified item listing before the date and time. For which of the following websites it is applicable?

Which one issues trigger a seller to open an Unpaid Item dispute?

Which createDSRSummaryByShippingDetail's Input Field is used to specify whether to aggregate DSRs from items with domestic shipping destinations or international shipping destinations using eBay FeedBack API?

Feedback API is supported by eBay Sandbox environment.

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.

Which notification is sent to the third parties subscribed on the buyer's behalf whenever a buyer removes an item from his or her watchlist.?

Which are not Trading API calls?

Which one is not an Input field while making a createDSRSummaryByPeriod call using eBay 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 one is optional while making a createDSRSummaryByCategory call using FeedBack API?