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Knowledge Base & Operational DocumentationHow to Handle Changes to Customer Identifiers in an Analytics Pipeline
11/10/2026
Identifier changes can break joins, create duplicates, or make historical trends appear to shift.
Checks to make
Document identifier source and stability, maintain a governed crosswalk when identifiers change, and test joins before backfills. Limit access to sensitive mappings, track effective dates, and communicate impacts to report owners.
When to get help
Data engineering can manage identity mapping and historical continuity. Informatix Systems can assess the symptoms, evidence, and next steps. Contact Informatix Systems to discuss this issue.