Notifications when issue added to epic

Release notes

• Notify participants/subscribers when a new issue is added to an epic

Problem to solve

When a new issue is added to an epic it could change the direction of the epic. An example here is the fix slow jest specs epic:

• &4270

Subscribers may want to be informed when new information is added and linked to the epic that they are following

Intended users

I believe that multiple personas would benefit from seeing notifications about new linked issues in an epic

• Parker (Product Manager)
• Delaney (Development Team Lead)
• Presley (Product Designer)
• Sasha (Software Developer)
• Rachel (Release Manager)
• Simone (Software Engineer in Test)

Proposal

Create worker to send notification async when issue is added to epic. Example: https://gitlab.com/gitlab-org/gitlab/-/blob/master/app/services/notes/create_service.rb#L26

Further details

Permissions and Security

• Only notify subscribers that have access to the epic
• Only notify those participants inline with their notification preferences

Documentation

Availability & Testing

What does success look like, and how can we measure that?

What is the type of buyer?

Is this a cross-stage feature?

Links / references