We are completely new to Matomo and are trying to import years of tons of data from UA, then later GA4. I get the message that brand can’t be imported. Is there a way to import both visitor and sales data for product brand?
Because if not, that’s actually a complete dealbreaker. If you run a large store, you need to be able to break down sales by brand. And product category, actually.
Can any kind souls help me here? 
WARNING [2023-09-20 12:46:42] 61852 Unable to import the ‘Brand’ custom dimension: unsupported scope, “PRODUCT”. is the error.
Is there no one with a similar problem? One would not think that “product brand” would be such an uncommon thing to need in reports.
We’ve finally imported years of data. Only took a month 
But we are missing the crucial “product brand” associated with our sales. I really don’t understand how to get it to import. It also did not import anything for “product category” even though that is listed in Matomo after importing.