01Agree which record is authoritative
Identify the owner of customer details, orders, status and other shared fields. Define the permitted direction of change and how conflicts are resolved. A field mapping should explain its business meaning rather than assume similar labels describe the same value.
02Confirm the supported interface
Review authentication, permissions, available endpoints, rate limits and source documentation. Establish how new and changed records are identified. Record any restriction that would require a vendor decision before promising a real-time connection. Working example: A location crosswalk and scoped update rules.
03Design for repeated and partial work
Use stable references to distinguish a new transaction from a retry. Document dependencies among updates and the response that confirms completion. If one step succeeds and another fails, staff need a recovery path that preserves the accepted record. For guest-service and facilities coordination, agree how guest services, facilities and property management contribute where those functions are involved.
04Make reconciliation part of support
Keep enough operational detail to locate a failed or mismatched transaction without exposing unnecessary sensitive data. Define reconciliation checks and a named owner for exceptions. Review permission changes, version updates and record-definition changes as ongoing dependencies. Review check: A changed record reaches the intended location and owner.