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This article explains how sub-task creation can be automated based on the labels label field while creating an issue.

Instructions

In this case, the sub-task creation is automated on the create transition when labels are empty (or) when specific label names are entered by the user.

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to restrict the creation of sub-tasks based on the specific labels.

1. Log in to Jira as an Administrator.
2. Click on > Projects > Project Settings
3. Select the workflow that is associated with the project and click on Edit
4. Click Add post function  link and select Create Sub-task from the list and click Add

5. Configure the Create Sub-task post function as shown below with the JQL

   as

   :
   

   Code Block
   theme Midnight
   project = KPS AND key = %original_key% AND (labels != No_Subtasks OR labels is EMPTY)

   Note: The above JQL will check for the issues and return results for the labels that are empty or the values not equals to No_Subtasks
   
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6. Publish the workflow.
7. Create a sample ticket and test if the sub-task is created or not.

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