Name the source of truth.
A CRM can own the enquiry while a field-service system owns the job, or a practice platform owns the appointment and patient record. Document those boundaries before syncing anything. Copy only the permitted fields needed for the workflow.
Build for exceptions.
Duplicates, cancelled bookings, missing fields and temporary API failures are normal operating conditions. Define identity matching, retries, reconciliation and alerts. A successful demo with one clean record is not sufficient acceptance.
Feasibility comes before promises.
Vendor plan, API access, authentication, rate limits and data-processing requirements shape the integration. Tools such as Jobber, ServiceTitan or Zenoti are considered in context; their mention does not mean every feature or direct connector is supported. Agree monitoring and maintenance responsibilities.