Newly Configured REST Server resource fails with 400 or “It is not on the appropriate screen or unknown” error
In order to fulfil this requirement, a Request Header element can be added to the REST (post, Get, Put, etc.) command task. The Name value should be Authorization with a Value of Basic (base 64 encoded string for username:password) PLEASE NOTE, this does not include the brackets from the following image, it should be "Basic string value" where string value represents the base 64 encoded string of username:password.
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