Your messages show as sent but never delivered
You can no longer see the person’s profile picture or updates
Their last seen or online status disappears
Calls to them do not go through
You cannot add them to a group or chat
Their posts, stories, or activity are no longer visible
You receive an error or no response when trying to contact them
Messages remain unread for a long time
Their contact appears unchanged but interactions stop
You cannot find their account when searching for it