If your iCloud account isn’t syncing on its own, you can manually update it in the Messages app. Here’s what to do.

1. In Messages, select Preferences under the Messages menu.

   Alternatively, press Command + , (comma) on your keyboard.

   

2. Choose the iMessage tab.

   

3. Make sure the box next to Enable Messages in iCloud is checked.

   

4. Click Sync Now.

   If you turned on the “Enable Messages in iCloud” option in the previous step, the sync may start automatically.

   

5. Your Messages app should sync, and new items will appear.

Any discrepancies between what’s on your phone and Mac could be because of the different ways you use them. While your iPhone and iPad are typically on and connected to the internet constantly, they can be way faster to sync than your Mac, which you might switch off, restart, or put to sleep.

If you aren’t seeing non-iOS texts (which appear as green bubbles in Messages) on your Mac, you should adjust a setting on your phone to make sure they show up on all of your devices.

1. On your iPhone, open the Settings app

2. Scroll down and tap Messages

3. On the next screen, choose Text Message Forwarding. On this screen, you should also make sure the MMS Messaging option is switched on.

4. Make sure the switch next to your Mac is in the on/green position.

   

5. As long as this option is active and both your iPhone and Mac are signed in to the same iCloud account, text messages you receive on your phone will also appear on your Mac.