How do I BPI pass a variable in Anim Notify to Char BP? [How to Hit trace in Anim Montage]

You can pass variables just fine. Problem you are going to have is AnimBP to Character.

Execution flow on the character class is:

Character Event Graph → Anim BP Event Graph → Anim BP Anim Graph.


Any variable coming from anim BP to character will be overwritten in character on tick next frame.