URL scheme for iOS App

Hi, i use an iOS app called scriptable to show my Battery SOC on the lockscreen. There you can set an url to open when tapped. with other apps i usw (like Tesla) i use their URL to open the app → tesla:// or shortcuts → shortcuts://. Is an url schema implemented in the app? i currently use the testflight beta version. (I already tried vrm:// betavrm:// victron:// victronvrm:// and nothing went through)

You need to use an api to pull data drom the vrm. And that needs extra set up as well.

I already have that set up, the script is reading the API and drawing the Info I want. The only thing missing is the part, where I tap the icon and I open the VRM App.

Should anyone else have this Problem, here is a solution i now use:

create a shortcut in the Shortcuts App to open VRM, call the shortcut VictronOpen and then use this URL in the URL option for the button:
shortcuts://run-shortcut?name=VictronOpen