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Apply validation rules that were in effect prior to the time the call started supporting ErrorHandling.

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Drop the invalid data, continue processing the request with the valid data. If dropping the invalid data leaves the request in a state where required data is missing, reject the request.

If BestEffort is specified for CompleteSale, the Ack field in the response could return PartialFailure if one change fails but another succeeds. For example, if the seller attempts to leave feedback twice for the same order line item, the feedback changes would fail but any paid or shipped status changes would succeed.

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If any of the item specifics data is invalid, drop all the data and proceed with listing the item. If the category has required item specifics and the data was dropped, reject the listing.

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If any data is invalid, reject the request.