Erase certain messages in Messages on OS X I like having the Messages app on my Mac, but I have one problem: When I delete a message thread on my iPhone, it doesn't delete from my Mac. In other words, if I delete three messages from the same person, on my phone, I see the previous messages and the later messages but not those specific ones. But on my Mac, they're all still there. And I don't see a place to delete them on my Mac the same way you delete them on the phone.
Deleting messages on an iOS device doesn't delete them from any other device.


You can remove message threads by clicking the × on the right of the contact.


You can remove individual messages by right-clicking the message and selecting Delete.