Agency teams can retrieve all available contacts, include mobile numbers when present and add new CRM data without overwriting agency-maintained records. The connector follows provider pagination, records the last successful sync and returns an actionable error when authentication, permissions or provider availability causes a failure. Synchronization refreshes provider data without resetting client assignments, notes, pricing or other operational fields maintained inside AgencyOS. Credentials are encrypted, masked and excluded from logs and browser responses. Disconnecting or deleting the integration removes AgencyOS access without changing the third-party account itself.