Setting due date of a parent card based on sub tasks

[Sunil Ghai]

I have created a checklist that has subtasks associated with a card. Each subtask is assigned to a member to provide an expected Due Date.

Is there a way to find the sub-task that takes the most time and set the parent's Due Date as same? 

[Suvradip Paul]

Hi @Sunil Ghai ,

Thanks for posting and welcome to the community.

Just a suggestion, Could you check and set up a butler rule to achieve that? 

[Sunil Ghai]

Hi @Suvradip Paul yes, I have, While it is possible to set the due date of sub-tasks based on the expected due date of the parent card, couldn't find a way to do this the other way around? If I'm missing any specific rule, can you please suggest? 

[Sunil Ghai]

Specifically, how do we compare the Due Dates of all sub-tasks and set the date of the parent based on the sub-task that takes the most amount of time?

[milynnus]

@Sunil Ghai 

If you need this you probably need to employ the services of a custom endpoint using the http request. Assuming the subtasks are connected, the endpoint will have to make that comparison for you and update the Task card. 
Typically I would imagine that you set a task completion date and the subtask takes guidance in terms of when they need to be completed during the WBS exercise.