Occasionally you will need to refresh authentication in your Constant Contact connector. To do this, please follow these steps:
Log into Blackbox and select Constant Contact V3 from the Connectors menu.
Click on the Data Sources button, then click on the ConstantContactV3 datasource.
Click on "Authenticate and Get Token"
When prompted login into Constant Contact
After logging in, click Allow on the authorization screen.
That's it! Your connection should be authorized to connect to Constant Contact.