Architecture3 min read
PIM, ERP, OMS, and WMS: Who Should Own What?
Assign authority by business object and field so operational copies do not become competing masters.
July 26, 2026
The interfaces look identical. The account structures, pricing logic, allocation stakes, and integration depth behind them are not.
By Operational Visibility Editorial Desk · July 29, 2026 · 2 min read
A dealer portal and a distributor portal look like the same product: a login, a catalog, contract pricing, an order button. Companies that treat them as interchangeable build the wrong one. The software overlaps; the business it serves does not.
Dealers are many, small-to-mid-sized, and buy to resell or install — think hundreds or thousands of accounts ordering weekly in dozens of units. Distributors are few, large, and buy to redistribute — think a handful of accounts ordering monthly in pallets, often with their own systems expecting EDI or API integration rather than a browser.
That difference cascades through every design decision:
Both live or die on the same plumbing: pricing from the ERP, availability from inventory systems, status from the OMS, product content from the PIM. A portal showing stale data trains accounts to call their rep, which is the outcome the portal existed to prevent — the ownership map is in PIM, ERP, OMS, WMS: Who Owns What.
Build a dealer portal to scale relationship count; build a distributor portal to deepen integration with a few large partners. If you serve both, design the account and pricing model for distributors first — it is the harder constraint — and let the dealer experience be the simpler projection of it.
Architecture3 min read
Assign authority by business object and field so operational copies do not become competing masters.
July 26, 2026
Inventory3 min read
Available, reserved, in-transit, receiving, quarantined, and sellable inventory are different operational states, not alternate labels.
July 27, 2026