Separate names with a comma.
Discussion in 'iPhone Tips, Help and Troubleshooting' started by Jackedangel, May 20, 2019.
i only get this with one person. What could be the cause?
SMS system failed to lookup the users LRN to route the message probably. Just click it and try again.
Switched from iPhone to Android and did not de-register their iMessages account?
That’s likely. It was sending iMessage because it’s blue.
I did try again on that phone to no avail. On a different iPhone I didn’t get that error. Does this exact error happen when you’re blocked?