Systems | Development | Analytics | API | Testing

Quick answer: Real estate data often differs across systems because MLS, PMS, CRM, and ERP platforms use different identifiers, schemas, formats, and update rules to represent the same property. Fixing it isn’t a one-time cleanup. It requires a reconciliation capability: identify candidate matches, normalize values, validate them, enrich missing fields, consolidate confirmed duplicates, resolve source priority when systems disagree, and monitor for new inconsistencies as records change.

A production release is not the end of engineering work on a product. It is the point where the software starts living in an environment it doesn’t control. Operating systems ship new versions, dependencies get patched or deprecated, third-party APIs change their contracts, traffic grows, and newly disclosed vulnerabilities turn yesterday’s safe code into today’s exposure.