Marketplace procurement model — single PO, consumption-based payment to multiple providers

I'd like to align on how we should model a marketplace procurement scenario in Oracle Fusion.

Scenario:

• We have a marketplace operated by ABC Corp.
• Within the marketplace, multiple service providers (A, B, C) deliver the actual services.
• We want to raise a single purchase order against the marketplace (ABC Corp).
• Invoices, however, need to settle against A, B, and C individually, based on actual consumption.

The core challenge is reconciling a single PO issued to the marketplace with invoicing/payment that has to flow to multiple downstream providers by consumption. Consider marketplace providing services to different AI models

Specific questions: