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Use case

This calculated field sums up all the story points of issue linked to an epic.

Create a new Calculated Number Field (by JWT) custom field and name it properly.

Providing a description will help you to identify what the custom field does but this step is optional

Add the following expression:

sum(fieldValue({issue.cf10200}, issuesUnderEpic(%{issue.key})))

{issue.cf10200} is the numeric field code for Story points (this field code might differ in your Jira instance)

To achieve this, the following functions are used:

Add the field to the relevant view screens.

Remember: All calculated fields are read-only and cannot be manually updated on a create or edit screen.

Check the results

Once configured and added to an issue screen (of an epic), the result will look like this:

Jira Workflow Toolbox (Server / DC) 3.x > Total of all story points in an epic > JWT_Doc_045a.png

Field type	Number
Use case description	Aggregates the total of all story point estimates of issues linked to an epic.