We are observing multiple different deviceId values linked to the same user within short timeframes. In some instances, a new deviceId appears every few minutes or hours. We utilize this identifier for managing Apple Wallet pass updates.
We would appreciate understanding which scenarios might cause the deviceId to change. Could it be influenced by:
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Device restoration or factory reset procedures
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App reinstallation or data clearing
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iOS version updates
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iCloud account changes or Apple ID authentication status changes
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Privacy feature activation (such as App Tracking Transparency or Private Relay)
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Testing environment usage (simulators or automated testing frameworks)
We aim to determine whether this behavior is expected or if it suggests atypical usage patterns.
Thank you for your assistance!