Question about Thule Chariot Sport 1

So: It is mandatory to have a "ST1 X Trailer Plate Kit" to be able to screw on the hitch. It is called "Trailer Plate Ass'y ST1X". Original accessory from Stromer. Item number: 400842 and costs 100 Swiss francs (without assembly).

Unfortunately, we lack real experience here, but basically any bicycle trailer with TÜV approval can be used with an e-bike.