No, Microsoft acknowledges that you may need to develop additional security processes to bridge gaps between existing security processes and what is expected from the Microsoft 365 Certification. The Microsoft 365 Certification team will review newly developed documented processes and will review evidence that the process has been carried out at least once. Additional, historic evidence will not be required as this will not be available for these newly developed processes. After twelve months, a sample of historic evidence will then start to be assessed during the annual assessment.