Public ID cannot be selected in the Manage duplicates section’s Update existing Test based on and Skip duplicates based on fields, because:
- ISSUE: those two fields only allow the selection of a mapped field (i.e. being imported and mapped to an existing field).
- and of course Public ID cannot be imported, since it is immutable, so it never gets exposed in the above two fields, and can therefore not be used to match existing entities.
I have posted this under “Bugs & Issues” because the Public ID field is the most important/safe field when importing data for existing entities since it is the immutable, truly unique ID of an entity across time (i.e. even if its associated entity is deleted, the released ID will never be re-assigned to a another new entity).