Update issue customfield based on customfield value of other issue

Question

Is it possible to update the custom field (some number filed) value of issue A, based on the customfiled value of Issue B

Avdhesh Chauhan · Answer

Yes is it possible through post function - even groovy is ok for me.

if you have samples please share

Jobin Kuruvilla [Adaptavist] · Answer

Do it in a listener. Post functions will handle only changes to the custom field in workflows. A listener will pick it in the occurance of any supported event.

https://confluence.atlassian.com/display/JIRA/Listeners

Vishwajeet Singh · Answer

Yes that's possible and depends on how do you want to do it. Are you doing it through post function ?