Adjusting parent ticket x amount of days, adjust child tickets x amount of days?

[Zachary Sharpe]

Hello everyone,

I'm looking to create a Jira automation, that will allow my users to shift start/due dates of parent tickets by "x" amount of day, and all child tickets linked to that parent ticket will adjust by "x" amount of days. So I am using JIRA Gantt charts to create a schedule for my project. what I would like is when my project/tickets shifts by "x" days that all children tickets move the exact amount of days as well. I do not want them to have the same dates. I would like them to keep the same amount of days from the parent ticket. I'm looking for the Jira smart value to input into the Jira automation?

Thank you in advance for the help!!!

[Zachary Sharpe · Accepted solution]

I found this answer from someone elses question. Just incase you have the same question as me. Here was my smart value answer I am using.

{{issue.Start date.plusDays(fieldChange.fromString.toDate.diff(fieldChange.toString.toDate).days)}}