- The contact purpose is explicit
- Bind every response and follow-up to tenant, enquiry, source, purpose, controller decision, channel, evidence, objection, suppression, frequency, accessibility and retention; identify the sender and never turn service contact into undeclared marketing.
- Property facts remain source-bound
- Use durable property and listing identifiers, field-level source authority, effective times, versions and correction; label stale and conflicting data and never let shared real-estate semantics prove truth, status, access or availability.
- Qualification is fair and inspectable
- Use only approved necessary stated criteria with visible reasons, preserve unknown and declined answers, block protected traits and proxies, test segment effects and route accommodation, discrimination and exceptions to qualified owners.
- The representative is eligible now
- Validate office, role, authority source, effective license or registration where required, market and property scope, conflicts, capacity, language, accessibility support and current availability; apply a deterministic, reviewable distribution rule.
- Booking rechecks access and time
- Combine calendar with working hours, travel, notice, occupancy, security, showing instructions, participant and accommodation rules; distinguish option, hold, request, acceptance and source booking and use preconditions and idempotency.
- Delivery, attendance, and outcome stay distinct
- Track message and change states honestly, fence stale replies, let authorized evidence establish arrival and meeting, preserve dispute and correction and never label a scheduled or attended appointment as conversion, sale, lease or revenue.