Regenerating a dashboard with the same data model but different data!

Hello PBI'ers

I know it's possible to just replace a file with the same datamodel and generate your made dashboard with the new data.

But are there any bottlenecks or surprises I might find out? or maybe best practises to do this and tips in establishing the most efficient en correct export proces?

I have 100+ customers with an export from a mailingsystem, I want to be able to create just one dashboard and reuse this for all those customers :)

Thanks a lot already! 

MrNelsch