"230 seconds is the maximum amount of time that a request can take without sending any data back to the response. It is not configurable."
You could argue that this isnt a but in nopcommerce, but the limit of 230sec runtime for requests on v 4.0 + in webapps on azure will make many tasks cancel.
Generating feeds, deleting customers etc might time out.
More information
https://www.nopcommerce.com/boards/t/57710/google-shopping-feed.aspx?p=2#245785
https://social.msdn.microsoft.com/Forums/en-US/05f254a6-9b34-4eb2-a5f7-2a82fb40135f/time-out-after-230-seconds?forum=windowsazurewebsitespreview