Duplicate Prevention Engine
One set of rules that stops duplicate cards and duplicate listings wherever inventory enters SlabIQ.
- Status
- In Progress
- First discussed
- Development started
- Last updated
Overview
Duplicate prevention covers three places: copies of the same card inside one batch, batch cards that match a listing you already have, and duplicates already sitting in your inventory. All three now use the same identity rules and the same combining service, so a card is combined once, its quantity goes up instead of a second listing being created, and graded and raw or different grades are never mixed. Live verification and a few reliability gaps remain.
Completed work
- Check Batch Duplicates combines copies inside a batch into one item with the full quantity, with undo (2026-09-13)
- Before publishing, SlabIQ checks the selected cards against your existing listings
- One combining service for batches and the Duplicate Combiner, with per-listing locks so a card is absorbed only once (2026-09-13)
- Combine many batch cards into many listings at once (2026-09-30)
- Stricter identity rules: different grade, grading company, graded vs raw, store or serial never group (2026-10-14)
Milestones
- Completed
Isolated, recoverable Duplicate Combiner engine
- Completed
Duplicate check inside a batch
- Completed
One combining service for batches and the combiner
- Completed
Combiner discovery and identity overhaul
- Not Started
Live-account verification of combining into existing listings
What “done” means
The outcomes this item has to deliver. Each is marked as it is confirmed.
Copies of one card inside a batch publish as one listing with the full quantity
Met
A batch card matching an existing listing raises that listing's quantity instead of creating a new one
Not yet verified
Graded and raw, or different grades, are never combined
Met
Development updates
No development updates have been posted yet.