Gather as much information as possible about the planned via ferrata: duration, difficulty level, popularity (and thus traffic jams at key points), etc.
In addition, the tour must also fit the weather. Who wants to hold the lightning conductor – i.e. the steel rope – in their hands during a thunderstorm? Or slide over wet rock after rain - so slippery as if it had been soaped? There's a simple remedy for bad weather: wait until it gets better. And in the meantime, look for something else that is fun too. Ötztal offers myriad alternatives.
Also calculate enough time reserves! Again and again, athletes are "surprised" by darkness on via ferratas. The reason for this is often that the route and the level of performance or fitness were not so well matched (see tip no. 2). And therefore, also the time schedule is out of reach.