What does the error message, "Customer Information Manager is not enabled" mean?

• What does the error message, "Customer Information Manager not enabled" mean?

This means that the Customer Information Manager feature is not set up in your Authorize.net account. This feature is required in order to have recurring payment methods where your members can store their payment information to be charged automatically. 

Check out this page for more information on steps to set up CIM in your Authorize.net account.