You will need to go to the existing certificate, press "Modify" which creates a new work order but with a copy of existing data, and then add the new product to the scope of the new work order.
Meaning in case of modification, it will be possible to create a new version of the audit with the same information that was filled in in the previous version. With this new version, a new scope can be assigned and a new version of a certificate can be created
