Duplicate listings are rarely a portal problem. They are usually a code discipline problem.
Start with:
Stable codes beat clever naming
Two identifiers should be stable:
owner_code: identifies the owner/landlord recordlisting_code: identifies the listing record
If these codes change or are reused inconsistently:
- portal feeds cannot be reconciled
- agents create duplicates unintentionally
- reporting becomes unreliable
Enforce uniqueness per tenant
In a multi-tenant system, uniqueness should be enforced as:
- unique within the same tenant
- not globally unique across all tenants
That allows:
- predictable imports
- safe upserts (re-running the same import does not create duplicates)
- deterministic portal publishing
Use codes as the anchor for imports and publishing
When you import listings or publish portal feeds, the code should be the stable anchor.
Practical outcomes:
- You can re-run imports safely
- You can regenerate feeds without creating duplicates
- You can trace failures back to the exact record
What to do next
- Start with structured listing records and codes: Real estate listing management (Dubai)
- Then generate portal feeds with mapping + validation: Property portal listing software (Dubai)