What does Other Actor pin mean?

Hi. OnComponentBeginOverlap has Other Actor pin. What does it mean ? Where can I read about it in the documentation?

Notice the event is called “OnComponent”. The “Other Actor” pin is used to filter any actor you want the overlap to affect.

It is used to get information from the overlapped actor. Usually this is used in conjunction with a cast node to access certain variables or attributes of the overlapped actor. If you need further explanation you can check out video #1 in the link below, it discusses casting and uses the overlap event as an example of a common use.

Thanks for answering, but i dont understand it. And i cant find information about it in documentation.

Thanks for answering, but i dont understand it. I tried to find information about Other Actor pin in the documentation and did not find.

OnComponentBeginOverlap is an event that triggers when the component first overlaps with something else (another actor). So that Other Actor pin is just letting you know what that other actor is (a wall, another player, a weapon…).