Chosen Solution

I don’t know who Apple ID is locking me out of my ipad 4. I thought I set it up. Apple Store wasn’t any help. Screen say Activation Lock

If you don’t know the Apple ID accociated with the device, then any effort to use it will be futile. The only thing you can try to do is contact the original owner and ask them to turn off Find My iPad - assuming that the iPad isn’t lost of stolen, of course.