I'm researching about Microservices Architecture and I concern about shared data between services as master data of the system. Example, in my system I have 2 business contexts "Import Booking" and "Import Invoice".
- Import Booking uses Company information to validate and create new Company if not exists.
- Import Invoice uses Company information to validate.
So, the system will have 3 services "Import Booking", "Import Invoice", "Company Service" and "Company Service" will expose an API for another services to CRUD or the system only have 2 services "Import Booking" and "Import Service" and CRUD Company will implement in each service.
I think you have your bounded context and service boundaries a bit off, look at this talk: https://vimeo.com/284707733 "Finding your service boundaries - a practical guide - Adam Ralph".
I'd recommend learning more about distributed systems also, you can't really lift a monolith into a Microservice architecture without doing a big paradigm shift...