I just bought a new rMBP and used migration assistant to transfer info from my iMac. On my iPhone I can only enable text message forwarding to one computer, either the iMac or the MacBook. Has anyone else run into this issue and know how to fix it?
I followed this tutorial http://www.richimages.net/?p=6685 and I'm finally seeing both computers on iPhone. The only thing I had to do different was a hard restart on my iPhone after the steps, then set iMessage to initiate new messages from my phone number, not an email address. Once I did that everything appears to be working.
I wasn't specific enough. I meant sms forwarding from iPhone onto the Mac. My text message forwarding one the iPhone shows 2 devices (two desktop computers) but I can't add a third. I did have a third device on there (one of my iPads) but never can get 3 computers. Every time I connect the third computer it simply replaces one specific one of the others. Having read the thread above, I think I imported the profile from my macbook to my new iMac, and maybe that's the reason why.Are you using iMessage? They sync automatically anywhere you are signed in to iCloud. I gave my old computer to my kids and they kept getting my messages there until I signed out. I don't forward them, they just follow my Apple ID wherever I'm signed in. But maybe you don't mean iMessage (and I get texts from non iPhone people that still sync through iMessage).