I just created a forum account just to share the way I achieved it. :)
You will need the Shopify Business Manager ID. You can get it by going to the Shopify-created catalog, and then Settings. There you will see something like this:
This catalog belongs to the business Shopify. You can manage permissions around who can see and edit your catalog.
After you got the number, follow these steps:
1) Go to your business manager settings
2) Go to Data Sources > Catalogs and select the pixel you want you use
3) Go to Assigned assets > Partners > Assign partner and paste here the Shopify Business Manager ID
After you grant permissions to Shopify on your pixel, you should now be able to connect the Catalog with the pixel. You can do so going to the Catalog > settings > event sources and selecting the pixel.
It worked flawlessly and now i'm getting the data correctly. Hope it works for you guys.
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