Lock changes after first record was made

Hi team,

I have a USERNAME column with an app formula that gets the user name from a table. So when users fill the form for the first time they don’t need to select a name. But here is the problem, I made an action button to change specific columns, whenever another user uses the action button the user column value changes also.

How can I prevent changes in this column? Is there any way to lock the USERNAME column after the first record was saved?

Thank you.

Move your App formula expression to Initial value instead, the set Editable? to the expression, FALSE.


Thanks Steve :v:t2:

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