An ORCID iD is a unique identifier that distinguishes you from other researchers. Having an ORCID id helps ensure accurate attribution of your work and can streamline the process of assessing your impact.
ResearcherID is a unique identifier that enables authors to track publications and citation metrics in Web of Science.
If you already have publications indexed by Web of Science, create a Web of Science account to claim an automatically generated author record and ResearcherID. Otherwise, you will receive a ResearcherID when you create your account.
Make sure the publications listed on your researcher profile belong to you and not to authors with the same or similar names. You may also need to merge duplicate author records to ensure there is a single ResearcherID associated with your publications.
Once you have connected your ORCID iD, you will be asked to grant permission for permission to update your ORCID profile. Once you grant permission, you can sync your profiles, keeping your ORCID profile up to date with changes in your Web of Science researcher profile and vice versa.