I want to return true as an output from the suggestion function if the entered code doesn’t match any existing ones, so I can use it as an output.

I'm encountering an issue where I need my suggestion function to return both a dataSubset and an output value (like a flag). The goal is to allow users to enter a new project code if it doesn't exist and make dependent fields editable. I need a way to pass that output from the rule back to the interface
 Trying with a!update