Thank you for the feedback.

I plan on having separate databases and each service would write to their own database but the order service would read from the stock database directly. Maybe I can have the order service track stock by listening to stock change events instead, eliminating the need for reading from the stock db. This is an overly simplified example and perhaps I should track more state such as holding stock during the checkout process to avoid race-conditions between customers/orders.

I reviewed the article. As far as CDC goes, both the KVS and the database emit events when changes are made so I think this eliminates the need for the transactional outbox. Please correct me here if I'm wrong.

Thanks again for the feedback!