I am attempting to connect to the CIM or ARB API and am receiving error E00007 “User authentication failed due to invalid authentication values.” Why?

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I am attempting to connect to the CIM or ARB API and am receiving error E00007 “User authentication failed due to invalid authentication values.” Why?

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This error generally occurs when you attempt to connect to the test environment with a production account. If you are using a test account and attempting to connect to the API you should use the following URL: https://apitest.authorize.net/xml/v1/request.api.

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