The requirement of transactional consistency is one of the ways you identify a bounded domain in DDD. Well aggregates at least. If you require transaction cons

The requirement of transactional consistency is one of the ways you identify a bounded domain in DDD. Well aggregates at least. If you require transaction consistency across multiple microservices. They are to small. If you don't require transactional consistency across microservices that's ok. Therefor they can be in separate databases anyway and messaging can be used.