@julienallard1 for me the best route was to use the API connector.
So i created a .php script which would act as an api endpoint it expects a POST with a defined JSON body… i also implemented security… that was the narly bit
In Bubble using the API connector i make a POST to that .PHP… its running on a standard .php server… i pass it the list of things i need deleteing.
The .php script then makes a call back into Bubble using the Data API and chugs away deleting stuff… no workflows … no impact on the bubble app.
Im sure there are various third party services that can do this. i decided on this as i control it and do other thing…for example i can create a list and sequntially order the cretaion of things… for me in my app… important.