Brands and agencies on one platform, without mixing the money

The information architecture is Organization → Products → Marketing plan → Channel allocations → Provider execution.

A brand organization owns its products and its Marketing Account. An agency organization manages client relationships and should switch context without creating a fake extra platform org for every client unless the commercial relationship requires it.

That split matters for billing. Who pays Google is not the same question as who funded the platform ledger. Mixing those two is how teams lose trust.

The public website therefore speaks to both audiences up front, even while the first shipped slice focuses on a business organization running Google campaigns.