@Big-Al-1 With an Android just proceed as shown in the screenshots.

In this specific case it´s all done on the phone ( MRA App and Connected Ride App ) installed on the phone

Open the route in MRA you want to export to BMW App
Screenshot_20250401-191821.png

Choose export and select GPX 1.1 Route, Track, POI and download
Screenshot_20250401-191829.png

Press export
Screenshot_20250401-191842.png

Press open
Screenshot_20250401-191851.png

Select BMW App
Screenshot_20250401-191859.png

3 Options to import will be given ( import two of them)
( Wegpunkte) and Track
Screenshot_20250401-191920.png

Open ( Wegpunkte )
Screenshot_20250401-191945.png

Press the blue button below "LEFT"
Screenshot_20250401-191955.png

Choose from Starting point ( last point here)
Screenshot_20250401-192004.png

You will see the route, including the waypoint name
Screenshot_20250401-192016.png

Press option and enable or desable wether you want to drive on highway or not ...
Screenshot_20250401-192027.png

Done ✌