GB based responsible persons (i.e. where the registered address for the responsible person is in England, Wales or Scotland) will lose access to CPNP, so all relevant cosmetic notifications to be uploaded to the UK service should be downloaded from CPNP as a ZIP file in advance of 31 December 2020.
How to submit a cosmetic product notification to the Office for Product Safety and Standards (OPSS)
If you are making cosmetic products available to consumers in Great Britain (GB: England, Scotland, and Wales), you must notify your cosmetic products using the new submit cosmetic product notifications service.
The link to the new UK products notifications portal live service will be included here on 1 January 2021
https://www.gov.uk/guidance/submit-a-cosmetic-product-notification