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This article explains how to add Number list values to a multi-line text field in the post function by using the Create On Transition app.

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1. Log in as a Jira administrator into your Jira instance.
2. Click on Projects from the top navigation bar and click on the project that you want. If the project is not visible from the drop-down, click on View all Projects and select the project that you would like to use.
   
3. Click on the Project Settings on the page, which you will be able to find on the left side down the corner of the project page.
   
4. Go to the workflow section and click on the pencil icon adjacent to the relevant workflow.
   
5.  Click on the transition, that you want to add Post Function. For example, If you want to add the post function at the In progress transition as shown below screenshot:
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6. Click on Post Functions section and then click on Add post function button.
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7. Click Create Issue button and then click add button for providing values to the fields.
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8. In the post function click on Custom Fields section from the left side panel.
   
9. Select the custom field and provide values to the filed. In the Values section you have to use the \n after the first value as shown in the below screenshot:
   
10. Then click on Add button in the post function.
11. Publish the Workflow to publish the changes.
12. When you do a transition to In Progress in the Jira issue, the new issue gets creates and custom filed values will be set as number wise.

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