Number of times a custom field has been changed

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:

Math expression for Calculated Number field:

{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.

more info...

{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

Title	Field type	Label
Difference between the current date and the earliest due date	Number
Elapsed time between creation and resolution	Number	STAFF PICK
Highest value out of several fields	Text
Months elapsed	Number
Number of days an issue was in the Open status against a JWT calendar	Number
Number of hours in the current priority	Number
Number of issues in the same version	Number
Number of open subtasks	Number
Number of times a custom field has been changed	Number
Number of times a resolved issue has been rejected	Number
Number of unresolved blocking issues	Number	STAFF PICK
Operate with field values from sub-tasks	Number
Sum of field value from issues in JQL query	Number
Sum of Tempo billable hours	Number
Time left before the issue is due	Number
Total of all story points in an epic	Number	STAFF PICK
Total remaining estimate in an epic (all linked issues)	Number
Total remaining estimate in an epic (no sub-tasks)	Number
Total time logged on an epic	Number