Step 1: Jump into your Messages and then from the top menu select Preferences. Here’s how you enable your Apple ID for Messages: If you haven’t then it explains why you may be getting the error. The very first thing to do is to cross out that you have enabled your Apple ID for Messages. Remember to Enable Your Apple ID for Messages. 🙂Įrror Occurred During Activation for iMessage or FaceTime on Mac: 13 Waysġ. In this guide, I’ll show you what I tried and how I did manage to fix the error and have both my iMessage and FaceTime working flawlessly on my Macbook Pro. It seems it just doesn’t work on your Mac and particularly once after that you’ve updated it. So the next course of action you take is to check whether it works on your iPhone or iPad (if you have any one of those) but curiously your device works as you are able to receive messages and make calls on your device(s). Could not sign in to iMessage (or FaceTime).” However, once everything’s updated, you try to open up your Messages or your FaceTime on your Mac but you find that the very first thing that you see is an error saying “An error occurred during activation. You start up your Mac and if you see an update on your Mac then you make sure to give your Mac the update it needs to keep your Mac in fine shape.