hi all !! is there a possibility in stacker to prevent saving/create a record if the key is a duplicate key ? exp email must be unique i would like to prevent user to save a record with an existing email ..../..... THANKS

As of right now this is not possible, but I will pass the feedback on to our team!

Are you in Airtable? If so, and while it doesn’t prevent duplicates, I use the dedupe extension now and again to check for this issue. You could crate an automation too.

I did that automatically When a new record is created, if existing record with same email exists then delete new record Works well, also sent an email to the user about the deletion (depends on use-case)