Tracking User Identities

• User Stitching: Allows Zeotap to link user activity across different sessions or devices when a known identifier is provided.
• Data Enrichment: Provides key identifiers needed for potential data enrichment processes.
• Audience Building: Enables creating audiences based on specific known identifiers.

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Understanding Identifier Types

1. Personal Identifiable Information (PII): Standardized identifiers like email or phone number. These can be sent raw or pre-hashed.
2. Custom Identities: Your own first-party identifiers (e.g., crmId, loyaltyId). Hashing configurations don’t apply to these.

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Choosing Your Hashing Strategy

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PII Identifier Key Reference

1. Identify the PII Property you want to send (e.g., Email, Cell Phone).
2. Determine your Hashing Scenario:
   • Scenario 1 (Raw) or 3 (SDK Hashing): Look at the “Key to Use if Sending RAW” column. Use that key (e.g., email, cellno) and provide the raw value. Pay attention to the recommended format for cellno.
   • Scenario 2 (Pre-Hashed): Look at the “Key to Use if Sending PRE-HASHED” column. Choose the key that matches the exact hashing algorithm and format you used (e.g., email_sha256_lowercase, cellno_with_country_code_sha256) and provide the pre-computed hash value.
3. Remember: For a single PII property (like email), you will use either the raw key or a hashed key in your setUserIdentities call, never both simultaneously for the same piece of information.

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Custom Identities

window.zeotap.setUserIdentities({
  // PII Keys (Raw or Hashed depending on scenario)
  email: 'user@example.com',
  // Custom Keys
  crmId: '12345-ABC',
  loyaltyTier: 'Gold',
  visitorId: 'ga_client_id_here'
});