What does microchip did not include prepaid registration mean in my integration

What does "Microchip did not include prepaid registration" mean in my PetLink upload results?

This message means the microchip was sold by an organization that purchased chips without prepaid PetLink registration. Those chips are registered with a different database and are not processed by PetLink.

This is not an error with your integration. You can safely ignore these entries — no action is needed on your end.