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Use case

This calculated field returns the number of times a date-time field - in this example Expected delivery - has been changed.


Configuration


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.



Parser expression

Add the following expression:

{issue.cf13602} != null ? count(fieldChangeTimes({issue.cf13602},^0 != ^1)) : null
# If the Expected delivery field is set, the number of field changes (strictly speaking their timestamps) is counted.



{issue.cf13602} is the field code for the Expected delivery date-time field.




Display format


Content type

Choose Number


Number format pattern

Choose ### times



Check the parameter Uninitialized when calculated value is zero



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 (a parent issue ), the result will look like this:




Related use cases



JWT feature

Field typeNumber
Parser functions

count()

fieldChangeTimes()

Label