Error Message: The server sent HTTP status code 401: [ISS.0084.9001] Invalid credentials
Possible Solution
Estes is a bit unique in that a customer can enter their password any way they want to sign in to the Estes website.
( For Example, if a customer set their Password as Shipping1 then Shipping1, shipping1, SHIPPING1, ShIpPiNg1 would all work to sign in to Estes Website. )
However, only the original password (Shipping1) will work during the dispatch request.
Due to the difficulty of determining the correct usage, a quick password reset (on Estes website) may be the best option available.
