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How to add Permissions of Read Call Log in production if not added during sandbox testing.would we need to suspend the app? and would we need to complete again graduation requirement ? how much time it will take ? what should be process ??
You can clone the app, give it a new name or add a version to the new app name. Add the missing permissions and run test in the sandbox the same way as you did for the first app. Graduate your app and finally replace the client Id and secrete to use the new app. You can suspend the old app after that.