Multiple link fields for custom object to people

[Jessie_Ye]

The lead database has both email address and a custom id number field as the unique combination identifier for de-duplicating people. Accordingly, when linking a custom object record to a person, it would be helpful to match it using more than one link field. 

[Katja_Keesom]

Would be nice indeed. In the meantime, as a workaround, you can of course also work with a concatenated field combining your two fields into one unique value.