If you cannot log in to SmartConnect 21 and receive the error message ‘No products for this customer ID,’ your SmartConnect license has been updated, and the local install needs to link to the correct account.

Reason
This error occurs because the users and passwords are typically stored in a local MSSQL Database for SmartConnect Perpetual license. For the transition to the SmartConnect subscription license, user credentials will no longer be stored in the local MSSQL Database, but in in our cloud based unified account system.
Resolution
The license type change of the subscription plan requires adding an initial subscription user. You can find the steps on how to add the initial user here:
We have documentation on how to add an initial user to SmartConnect.com.
Then, you can add additional users to SmartConnect.com.