Select Workflow Transitions:
Navigate to Workflows & Select the Workflow name.
In the Actions, Click on Edit.
Select the transition.
Add New Expression:
Click on the "Add Validator".
Choose the ‘Custom Expression Validator’.
Click on the Add button.
Provide the required values in the text field:
Optionally, provide a title for your validator.
Enter the Jira expression for the validator.
Specify the error message to display if the Jira expression returns false.
Click on Add.
Help Links:
To access help links, click on the Help Icon located at the top right corner of the page.
First Link will navigate to the confluence page. https://confluence.prod.mgtechsoft.com/wiki/spaces/EFJ/pages
Second link will take you to the Jira documentation page. https://developer.atlassian.com/cloud/jira/platform/jira-expressions/
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