Fit Quiz typically syncs with your product catalog at the time of the initial integration. It means, that if you've since added new products, they may not be yet reflected in the "Mapping" table.

To fix this, you will need to resync your catalog by clicking the "Resync catalog" button right-hand corner of the "Mapping" screen.
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Check our article on the "Mapping" screen here. If the issue persists, feel free to reach out to our support team.