Direct cost
Use supplied identity and the allocation decision to explain why a cost belongs to a particular owner. Keep the supporting source context available for review.
Product / Allocation
Make cost ownership explainable, not approximate.
Make ownership decisions visible while keeping every amount reconciled to the bill. Review direct attribution, shared cost and the work that still needs an owner.
Product
An ownership decision should be explainable.
Start from source-backed accounts, projects, resources and tags. Review how those records support the ownership you use in a financial discussion, rather than treating a provider grouping as a complete team assignment.
Shared cost
Make shared amounts and their treatment explicit. A shared charge still belongs in the reconciliation even when the responsibility is discussed across teams.
Conflicting or unallocated cost
Separate conflicting ownership evidence from charges without a usable assignment. Both remain visible for human review rather than being silently redistributed.