Prevent Sub-task Creation in Jira Cloud

Preventing users from creating subtasks when the parent is of a certain type. 

Jira Expression

The Jira Expression below does two things. The first part checks if the issue to be created has a parent. This is to allow issue creation of issues without a parent (that is, a standard Jira issue).

The second part (separated by the OR operator "||") is to define the issue type of the parent. If the subtask being created has a parent of (in the case of this example, issue type "Task" or "Story"), users will not be able to create subtasks.

Additional Pages

For instructions on creating Jira Expressions in a SIL Validator, see this Anova Apps documentation:

Conditions and Validators (Cloud)

Atlassian documentation on Jira Expressions:

https://developer.atlassian.com/cloud/jira/platform/jira-expressions/

https://developer.atlassian.com/cloud/jira/platform/jira-expressions-type-reference/

Power Scripts Knowledgebase article on Jira Expressions testing:

Testing Jira Expressions for SIL Validators

Additional Help

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