OdataLink Error Code 7001: User login does not exist
Error 7001 will be logged when the user name and password specified in your OData client does not match your OdataLink username and password.
Please double check if the user has permission to access the model, and if the password is updated.
The way to correct this issue varies depending on your OData client.
Power Bi
Updating the permissions for an OData feed power query in Microsoft Power BI
Microsoft Excel
Updating the permissions for an OData feed power query in Microsoft Excel
If you're still receiving error 7001, clear permissions for your data source in your Microsoft Power BI or Microsoft Excel Data source settings, and try to Refresh again.
You will then be prompted to enter your credentials. Select Basic authentication and enter your OdataLink username and password. Once you have entered them, the error will be resolved and your data will start refreshing.
Note, while not recommended, you can also set the login type to Anonymous.