Some other unique author identifiers were developed before ORCID was available. Scopus' AuthorID is one. Unlike ORCID, Scopus' AuthorID is connected to a proprietary, subscription based system, namely Elsevier's Scopus database. Scopus AuthorIDs are assigned by an algorithm when articles are indexed for inclusion in the Scopus database.
Advantages of Scopus Author IDs
Limitations of Scopus Author IDs
Be sure to thoroughly examine the results to see whether your publications are split between multiple authors on the list. If that's the case, you'll want to merge the corresponding AuthorIDs.
If your publications are split among two or more author profiles, you can select all the profiles and click on "Request to merge authors." You must create an Elsevier login to do that. (If you use products like ClinicalKey, you may already have an Elsevier login.)
Learn more about claiming, updating and editing author IDs in Scopus.
You can also contact the library for help.
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