Hello @brian.maina
You’re right. Automations can’t trigger from mirrored columns, including mirrored Person columns.
Best option is to sync it into a real column:
Add a normal Person column.
Use board-to-board automations to copy the value from the source board into that column.
Trigger your notification from the real Person column.
Dr. Tanvi Sachar
Monday Certified Partner, Monday Wizard
Gotcha, then yes what was said above is correct. You’ll basically need to add a ‘helper’ column in the board you want it to trigger from. Then use a template automation to update that status when the mirrored status changes. Then an automation to notify a people column from the change in the ‘real’ column.