What I'm trying to acheive is to trigger an action (comment) when a ticket is raised based on a condition that if the text length within a custom feild exceeds a certain length (21 characters).
The conditions available to me do not seem to give me this option so I beleive I will need to use Scriptrunner? I'm just not sure how to integrate that with the JIRA Cloud automation conditions.
Please help 
Many thanks,
Mike