we are developing a financial system that should store transactions events in a very granular way, so it probably use something as 10 to 50 per stream, but can reach many billions of streams. Pls, let me know, are there any limitation on streams creations ?
There is no limit imposed by Event Store on the number of streams that you can create
I think this is related to this topic. Hopefully you are the client able to pay for that awesome feature!