Automation to change to original assignee

[Yasmine]

I'm trying to create an automation to resolve an issue we come across when staff is out and their work needs to be covered by someone else. I'm unsure of what direction to go in to make this automation happen. 

What I'm trying to accomplish: 
When issue is transitioned to X status. and issue type equals A, then change assignee to the previously assigned user

Is this a possibility? How do I accomplish that? Thank you! 

[Jack Brickey]

To accomplish this you would need to create a custom user field then create one rule to store the original assignee. Then a second rule would set the assignee to the original - assignee = {{issue.custom field}}

[Jehan Bhathena]

Hi @Yasmine ,

Changing the Assignee via automation and storing the previous one shouldn't be that tough, you can refer to this article for those details :

https://community.atlassian.com/t5/Jira-Software-questions/Jira-Automation-Assign-an-Issue-to-Previous-Assignee-on/qaq-p/2083793#M640780

https://confluence.atlassian.com/jirakb/send-notification-to-previous-assignee-when-assignee-changes-on-a-jira-issue-1155467039.html

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Although your use case seems to be one, where is one user is not available for that day, you need to re-assign the work from that user to someone else. This I don't think is available out of the box in Jira. I use this plugin to keep track of user leaves and unavailable users https://marketplace.atlassian.com/apps/1228367/time-off-management-auto-assignment?tab=overview&hosting=cloud