Open reference architecture

CRM Integration Architecture

A vendor-neutral pattern for synchronising CRM and surrounding systems without making the integration layer an undocumented source of truth.

System of record

Define ownership for customer, contact, activity, commercial and consent data before connecting systems.

Integration contract

Prefer documented APIs/events and versioned schemas; isolate vendor-specific mappings behind an integration boundary.

Identity resolution

Use stable identifiers and explicit matching rules; do not rely on names or email alone where collisions matter.

Event delivery

Design for retries, deduplication, idempotency, ordering assumptions and dead-letter handling.

Data quality

Validate required fields, enumerations and referential integrity; quarantine invalid records rather than silently corrupting destinations.

Security

Use least-privilege service identities, secret rotation, encrypted transport and scoped audit logging.

Migration

Rehearse extracts, transforms, reconciliation and rollback; preserve source-to-target lineage and exception reports.

Exit & portability

Document export formats, custom logic, integrations and data ownership so switching cost is understood before platform selection.