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The problem is it's not clear when to use what. Some get confused and use it in the wrong place. Here are some questions to ask before you use microservices.

Does the service need an independent and dedicated team to manage its complexities, or is it a "part time" job? Try a Stored Procedure first if its the second.

Is the existing organization structure (command hierarchy) prepared and ready for a dedicated service? (Conway's law) Remember, sharing a service introduces a dependency between all service users. Sharing ain't free.

Do you really have a scalability problem, or have you just not bothered to tune existing processes and queries? Don't scrap a car just because it has a flat tire.