Since tax nexus is now an increasingly complicated and important thing, it would be great to have some built in reporting to help sellers determine where they might have Nexus.

I was able to jump back and forth between Reporting and Order Processing with Advanced Filters to get the information I needed, but it seems like it could be easier.

For a nexus report to work, it would be necessary to have an available metric of "number of transactions" instead of just "units sold" and "gross revenue". It would also be helpful to be able to filter out any sales that have a source of "Marketplaces" since often those are already being handled by the marketplaces themselves.

..and while thinking about Reporting improvements, it would be really great to be able to do reporting on the product variant level to determine quarterly or annual inventory turnover by size, color, etc.