Summary
To fix the issue of messages not appearing on the Mac, make sure that Messages in iCloud is enabled on all devices.
1
On the iPhone, go to iCloud settings and check that Messages is checked.
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On the Mac, open the Messages app and go to preferences.
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Additionally, try turning off and on iMessage on both the Mac and the iPhone.
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Make sure to activate all email addresses you want to use with iMessage.
2
If the issue persists, try setting up SMS and MMS messaging
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, using SMS and MMS messaging
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, and restarting all devices.
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If the above methods do not work, try turning off and on Text Forwarding.
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This should generate a new code on the Mac, which should be entered on the iPhone.
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According to