Allow automation rules to trigger secondary automation rules Merged

If automation on one record updates a related record, I would then like to trigger a second automation rule on the secondary record type based on the original change.

For example, I have an automation rule that, when an epic is set to Will Not Implement, will update the idea status to Will Not Implement. I also have a rule that if an idea is set to Will Not Implement, an admin message is posted on the idea.

However, currently if I update an epic to Will Not Implement, although the idea status updates as expected, an admin message is not posted as one automation rule cannot trigger another.