@Engineer thank you very much for clarifying. In our case device with that token has been deleted in February. We sent silent pushes every day since February. We also sent regular pushes once or twice. Token is still valid and we did not get 410 responses. We understand that there is a fuzzy schedule but could you please confirm whether fuzzy schedule could last for months so we could have better expectation in terms of when to invalidate and remove tokens on our side? (Apologies I tried to comment on your answer above but my post could be saved for some reason)