@gentle-ability-75784 Yeah the best way is using an AI Task with instructions like: "Check if the user name is a valid one with no curses, emojis, symbols and has at least 3 characters. If it passes all validations, set the isNameValid variable to true, otherwise set it to false". With the input: User name: {{workflow.name}} Storing in the variables

isNameValid

Then below the AI Task you add two Expressions. the first one has the code

isNameValid === true

and transitions to the next node The second one has the code

!isNameValid

, and transitions to the start of the flow to ask the name again (ideally you should transition to a node with a text that says "That's an invalid name", and then transitions back to the node with the capture