I need help to connect a orb with a pillar to open a gate.

Hello, so i have my character , it can pick up the orb, and then the orb destroys, i can respawn it again, the problem is , i dont know how to make the pillar accept my orb , and open a gate. I need help .

Place trigger volume in space where orb should be accepted.
Then on Event Begin overlap check if overlapping actor is orb, then open gate.