How to connect Assignment Group with Users?

[Wioletta]

Hello all,
i have the following situation:
1. I have specific groups in User management that have specific users.
2. In tickets i have two fields Assignee and Assignment Group.
I would like to get a single drop down list for Assignee field when i choose Assignment Group, so i can choose only one user from this specific group.
Is it possible to do it?

I know i can create a drop down list for a field, but this one will differ for each security group + i will have to update the field every time the security group changes.

[Rilwan Ahmed]

Hi @Wioletta ,

Welcome to the community !!

"I would like to get a single drop down list for Assignee field when i choose Assignment Group, so i can choose only one user from this specific group."
-- This is not possible in native jira

Similar question was provided an workaround by @Riley Venable in https://community.atlassian.com/t5/Jira-Service-Management/Assignee-based-on-assigned-group/qaq-p/2306130. Check if that works for you.  

[Rebekka Heilmann _viadee_]

Hi @Wioletta and welcome to the Community,

You can restrict the "Assignable" User permission to a "group custom field value". That way, the issue can only be assigned to the users from the current Assignment Group. You'll need to edit the Project permissions for that.

However, I don't think that will limit the auto completion as that is restricted per Field context. For Assignee, that is "All active users".