Calculate due date based on Original Estimate

[Liz T]

Use Case: We are using the Original estimate field to estimate how long a task should take. Ex: Original estimate = 3w

We'd like the End date to update when somebody updates the Start date on a task, based on the Original estimate.
Ex: Start date 11/3/2022 + Original estimate 3w = End date  (11/24/2022)

Question: Does anybody have a suggestion on how I could create this automation?
I got this far:
>>When field value changed --start date
>>then edit issue --due date
but then don't know what to put in...I've tried various JQL, but can't get it to work.

Would this need to be a JQL or should it actually be JSON?

[Alex Koxaras -Relational- · Accepted solution]

Hi @Liz T and welcome!

This is what you are looking for https://community.atlassian.com/t5/Jira-questions/Ho-to-calculate-the-due-date-field-based-on-original-estimate/qaq-p/1645180

[Liz T]

Thank you!!

[Liz T]

@Alex Koxaras -Relational- It worked! I really appreciate your help : )