Business system integration pattern

ERP & CRM with
a controlled adapter boundary.

A Thonem integration pattern for connecting ERP, inventory and CRM systems without putting downstream availability on the checkout critical path.

See the pattern ↓Add to project plan
TH / INTEGRATION
Commerce events→Sync boundary→ERP / CRM
implementation pattern · availability is project-specific
IMPLEMENTATION BOUNDARY

Provider logic stays
outside commerce rules.

The goal is not to make Thonem depend on a provider. It is to give the provider a small, testable adapter that translates between its contract and the commerce domain.

01

Normalize

Map provider-specific requests and responses into internal commerce commands and events.

02

Verify

Authenticate callbacks and validate state transitions before applying business side effects.

03

Observe

Log references, latency and failure classes so provider outages can be diagnosed without obscuring transaction truth.

PROJECT CHECKLIST
  • Define which system owns product, inventory, customer and order fields before synchronizing them.
  • Use queues or scheduled reconciliation when a downstream system does not need to block checkout.
  • Record synchronization cursors or event identifiers so retries do not duplicate updates.