Along with the general availability of a new Graph Export API for Teams, Microsoft is introducing new licensing and charging models. Understanding the charging incurred for different uses will take some time to sort out and could pose real challenges for ISVs working in the migration space. Developers need to understand terms like model A and model B, seeded capacity, and consumption units and how these apply to their apps. The question now is if this is a test bed for Microsoft to apply similar charges to other APIs.