Button configure action: set column values does not work

So this is my first page of the app, my plan is after a new customer click the button the "start(chinese‘’开始‘)’button

(here is my setup):


and my data page - users table - role column will auto fill up the word" user".

But I tested a lot of times, the word ‘user’ never appear. Can anyone help?

Roles cannot be assigned via the app.

The only way to assign role via the app is to use webhook workflow and trigger that workflow from the call api action.