How to connect users from a Data Source to a Role

A boat club needed to have a Role containing its members. The members was listed in an uploaded Excel file that was connected as a Blippa Data Source.

The solution was quite simple:
In Labelsadmin-Setttings-Roles there is a setting for ROLE SYNCHRONIZATION.
I just added “datasource:BAS>epost2” to match this Role assignment to any user that logs in with an email matching the “epost2” column in the Excel file (connected as the Data Source BAS in this case).
(Users need to logout&login to make this happen)