Is your friend’s fitness activity not showing? It may be because you have a different cell carrier.

A friend and I have been going back and forth as to why our activity sharing would disappear. It worked fine while we were with the same cell carrier. Then, I changed carriers and my activity would share for a day or so, then stop. Now we’re on the same carrier again and everything is working fine. So if you’re encountering this issue, ask the other person about their cell carrier. This may be the problem.