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Use case
Evaluate issue links and hide transitions based on the outcome.
This use case is valid for both conditions and validators . The only difference is that you can specify an additional error message when using a validator.
Configuration
Jira expression*
originalIssue.comments != issue.comments
The whole set of comments before the transition must be different from the set of comments during the transition.
Related use cases
ADVANCED BEGINNER BEGINNER BEGINNER INTERMEDIATE BEGINNER INTERMEDIATE BEGINNER INTERMEDIATE INTERMEDIATE INTERMEDIATE BEGINNER BEGINNERUse case JWT feature Workflow function Parser functions Complexity Block a transition based on issue links 
Block a transition based on sprint information Block a transition based on the day of the week 
Block a transition if a predefined field value has not been changed 
Block a transition if some issues under an epic are not in a certain status 
Check current issue status Check for unresolved sub-tasks Check if an attachment was added recently 
Check parent issue type Check the number of times that a field has changed 
Evaluate the Parent Link field Evaluate worklogs in sub-tasks Validate an issue only if a comment is written during the transition 
Validate worklogs 
If you still have questions, feel free to refer to our support team.
