I'm trying to create a custom guardrail with a parameterized message. When I use the function @pxAddGuardrailMessageWrapper("MyMessageRule"), the guardrail warning shows up correctly. However, when I try to add a parameter to the Message Rule, it doesn't add the guardrail to the rule. I'm invoking it like @pxAddGuardrailMessageWrapper("MyMessageRule\t123"). When I trace the scenario, I see a database call to get the message rule in the happy path, but no database transaction when I pass a parameter.

Any ideas as to things I could try to solve this?

Below is the rules I have configured.