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You can extend the Profiles packages to modify the existing ID types or add custom ID types to the default list.

Add custom ID types

To have a custom list of ID types other than the ones provided in the default package, you can modify your list as follows:

entities:
  - name: user
    id_types:
      - user_id
      - anonymous_id
      - email
id_types:
  - name: user_id
  - name: anonymous_id
    filters:
      - type: exclude
        value: ""
      - type: exclude
        value: "unknown"
      - type: exclude
        value: "NaN"
  - name: email
    filters:
    - type: include
      regex: "[A-Za-z0-9+_.-]+@(.+)"

Make sure that the ID types are also defined in the entity definition.

Modify existing ID types

For the id_type you want to modify, add the key extends: followed by name of the same/different id_type that you wish to extend and the filters with include/exclude values.

packages:
  - name: corelib
    url: "https://github.com/rudderlabs/rudderstack-profiles-corelib/tag/schema_{{best_schema_version}}"
id_types:
  - name: user_id
    extends: user_id
    filters:
      - type: exclude
        value: 123456
id_types:
  - name: customer_id
    extends: user_id
    filters:
      - type: include
        regex: sample

• id_types

Enlists the type of identifiers to be used for creating ID stitcher/entity_var/input_var. For example, you can define anonymous IDs that do not include the value undefined or email addresses in the proper format.