How to automatically change start and due date of subtasks

Umar Maroof

Hi

Hope everyone doing well

In my project I have task under these tasks the subtasks are created automatically where start dates and due dates of subtasks are also created automatically by setting the value of the fields in automation

Now for example I created the task

Subtask 1 (start date 2 jan , due date 4 jan)

subtask 2 (start date 3 jan , due date 5 jan)

and so, on 

there are so many subtasks like this where start and due dates are automatically generated

Now what I want if change the due date for any of the subtask the remaining subtasks start date and due date automatically change.

I am not sure how to achieve this

I am using jira cloud 

 

Alex Koxaras -Relational-

Hi @Umar Maroof 

This requirement of your was a nice exercise for me! It was a bit tricky to accomplish that, but everything turns out great! You can create the following rule which I'll explain just below:

When the Due date for a task issue type is changed, then Start Date and Due Date of all subtasks to that task will be increased or decreased by the same amount of difference between the new and the old task's due date.

 

• Starting off, you create your trigger to which you select "Due date" and only for the edit operation.
• Next you should add a condition about this rule continuing only if the issue type is task (you don't want this to get triggered for Epic or subtasks)
• Then you create a variable called "difference" or whatever else you choose and in that you type the below smart value, which will give you the difference number of days for the changed field.

{{fieldChange.fromString.toDate.diff(fieldChange.toString.toDate).days}}

 

• After that you create your branch and you choose "For Sub-tasks"
• Then you add an Edit Issue component and you select your two fields, Start and Due date
• Then you paste as a value the following:
  • {{issue.Start date.plusDays(difference.asNumber)}}
  • {{issue.Due date.plusDays(difference.asNumber)}}

 

Some things to take into account:

• If the subtasks have values but your task does not, then changing the values from the task, will erase the values from your subtask. So be careful with that
• Take a look at that @Piet Pieters wrote about the business days. Increasing or decreasing days without taking into account weekends, can result in having a Start or Due date falling into a weekend. To avoid that try on the Edit Issue component to replace plusDays with plusBusinessDays

Let me know if that works for you.