Why do my texts keep disappearing

[AC Question]

My friend has a galaxy s7 edge and when I text him he says he can read them, but when he goes to reply they disappear. This is a recent event since he has had this phone for awhile, but he said he deleted an incoming message of mine a week ago and then all this started. Any thoughts?

 

[B. Diddy]

Welcome to Android Central! Tell your friend to try wiping the cache partition: https://support.t-mobile.com/docs/DOC-24999. It's also worth asking his carrier if they can help.