Useful by design
Integration adapters
Keep the boundary between systems visible.
Two systems can use the word customer while meaning different things. Connecting fields without resolving that distinction can create duplicates or overwrite a trusted address.
The paid engagement
We offer source-of-truth mapping, API feasibility checks, a narrow adapter and a reconciliation view. Credentials remain in owner-controlled accounts. The design includes retries, rate limits, removed records and the point at which an exception needs a person.
Acceptance and boundaries
Testing uses synthetic fixtures and a provider sandbox where available. Handover explains what is synchronized, what is intentionally excluded and how to disable the adapter safely. Provider changes and unsupported APIs are recorded as maintenance dependencies.