What is the recommended way to await or wait from activity?

I have send signal from activity workflow A to signal workflow B, how to wait for response signal from workflow B.

It is not possible to wait for a signal from an activity. But I’m not sure why this is necessary. I would recommend sending signals from workflow to workflow directly instead.

What is the use case that you are trying to implement?

Thank you for the clarification.Just wanted to know for my knowledge if its possible or not.