<b>One publisher ID, twelve seller_ids</b>

<b>One publisher ID, twelve seller_ids</b>

Watching: a single SSP relationship can map to multiple seller_ids — one per pub property or per integration. Buyers de-duping at the seller_id level see twelve sellers where there's one entity, inflating your apparent footprint and triggering quality models that penalize sprawl.

— seller_id sprawl reads as low-quality long-tail supply
— Consolidation under owner_domain fixes the optics

Impact: map all your seller_ids to one declared owner_domain so audits see one clean entity. (sourced)