Endless Duplicates: Struggling to Get Google Sheets 'Watch Changes' to Work Without Chaos

I’m trying to use the Google Sheets “Watch Changes” with immediatly as the run mode, but it keeps retriggering multiple times and ruining my whole automating lists plan. Since it causes dubbles. Many dubbles of the same person in one list.

The goal is so it will always be on and trigger only if a new row is added and it will automaticly sort it out without creating dubbles.

I think the legacy version of the module “Watch Rows” could solve my problem, but I can’t find a way to enable or access it. Can someone help me find the legacy module or help with my problem with the new modules?

Thanks a ton!