Customer Data Sync & Webhook Middleware Case Study

CASE REVIEW

Account changes in billing did not always reach support tooling, creating awkward conversations with customers. We implemented a middleware service that consumed webhooks, normalized payloads, reconciled conflicts, and updated downstream systems with idempotent writes—plus dashboards for failures and replay tools for ops.

CASE TIMELINE

Discovery through rollout: 8 weeks

STACK

Event-driven workers · Redis / queue · Structured logging

PIPELINE HARDENING

We added signature validation, dead-letter handling, and backoff policies. Schema versioning let us evolve events without downtime. Ops could trace a customer ID across every hop.

DATA INTEGRITY

Idempotency keys · Conflict rules · Golden record strategy

OPERATIONS

Alerting · Replay UI · Runbooks

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