[System data > System > User mapping]
For every protel Air HTML5 user there is a corresponding Flash user. Both users are linked to each other.
In older protel Air versions (before June 2018) the HTML5 and the Flash user still had to be linked by hand. Meanwhile, the Flash user is automatically created and linked to the associated HTML5 user, so no further action is required.
The User mapping shows you which users are linked to each other.
Log into your protel Air hotel software and select the suitable hotel (if there is more than one).
Open the System Data menu and click on System > User mapping.