Supplier catalog files are one of the fastest ways a clean catalog becomes a dirty catalog.
The supplier is trying to get coverage. You are trying to publish something a distributor or retailer can trust. Those goals overlap, but they are not identical. If you ingest first and audit later, you inherit their over-mapping, their outdated configurations, and their gaps.
A short inbound review is enough to decide “accept,” “accept with notes,” or “return to supplier.”
1. Confirm the file is actually ACES.
Version, required tables, and basic structure should parse. If the file cannot load cleanly, it is not ready for a quality discussion.
2. Check a sample of high-volume parts, not only the first 50 rows.
Look at parts you already sell and parts that historically return. Ask whether the supplier applications match the applications you already trust.
3. Look for over-mapping signatures.
The same part on every engine in a model year, or on body styles that never used the component, is a warning. So is a sudden jump in application count with no product change.
4. Compare against current vehicle configuration.
Applications that reference configurations you no longer consider valid should be flagged before they go live.
5. Write down the rule you will enforce next time.
If you reject a file, the supplier needs a specific reason: missing base vehicle, invalid engine, applications outside the part’s category, or incomplete required fields. Vague rejection letters produce the same file again.
InterWest Technology Group works with customers and with their part suppliers on this exact handoff: inbound catalog quality before it becomes published catalog quality.
InterWest Technology Group 