It’s a fairly common need for developers to validate user input as a unique value for a given column.
This is a little tricky in AppSheet, but @Suvrutt_Gurjar has posted a great solution:
However, that’s not the easiest thing for a new user to figure out.
Could we get a toggle button to require unique values?
I’ve found myself going back to the same post several times to remind myself how to implement this common requirement. This is much easier to accomplish in most other platforms, as it tends to just be a toggle button with no expression needed. Thanks for considering!