Read some tutorials, look at the manual, and/or do an actual proper search.
Your question isn't a clear one either, and is very broad.
I guess mahdi71 wants to have a condition On any error, On any progress, On any completed – without tags.
Let's say you have 3 ajax requests, each one with a different tag (let's tag them "Req1", "Req2", "Req3").
Now, the user would like to execute some actions, no matter on which request completed/error/progress. Right now, it seems like the only option is to have
On "Req1" completed OR On "Req2" completed OR On "Req3" completed -> action[/code:g6dumu0l] but that's very time consuming if you have lots of requests/tags.