Use case
This calculated field will return the creation date of the linked epic.
Configuration
Create a new Calculated Date-Time Field (by JWT) custom field and name it appropriately.
Providing a description will help you to identify what the custom field does, but this step is optional.
Parser expression
Add the following expression:
first(fieldValue({issue.created}, linkedIssues("has Epic"))) #since the function fieldValue() returns a list the function first() returns the single value of the list.
Display Format
Format type
Choose Date Time Picker
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 (e.g. for all stories), the result will look like this:
Related use cases
If you still have questions, feel free to refer to our support team.