Standards

Supply Chain Object (SCO) — Definition & Explanation

An OpenRTB extension that includes a chain of nodes in each bid request representing every entity that touched the impression from publisher to exchange. Buyers verify each node against sellers.json files to ensure supply chain integrity.

How Supply Chain Object (SCO) Works

The SCO (or 'schain' object) builds a sequential list of sellers in the supply path. Each node includes the exchange domain, seller ID, and whether the relationship is direct. Buyers verify each node for legitimacy.

Why Supply Chain Object (SCO) Matters for Publishers

Complete and accurate supply chain objects are required for premium demand access. Buyers using SPO strategies specifically target impressions with transparent supply chains.

Frequently Asked Questions

What happens if my supply chain object is incomplete?

Buyers with strict supply chain requirements will filter out bid requests with incomplete or unverifiable SCO data.

Does Stellor Media implement supply chain objects?

Yes. Stellor Media implements complete and accurate supply chain objects in all bid requests, supporting buyer transparency requirements.

How does the supply chain object relate to sellers.json?

The supply chain object identifies the chain of sellers in a bid request. Buyers verify each node by checking sellers.json files for the listed exchange domains.

Related Terms

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