Rakuten marketing does affiliate, display, and search advertising.
Rakuten Marketing’s feed format isn’t too complex, but does have some import fields that should be properly optimized, like title, category, and description.
This is especially true for search feeds, as Rakuten Marketing functions as an agency by advertising on Google Shopping.
Slylight is a large fashion aggregator that appeals to high fashion buyers.
Their feed format is a little specific to fashion, and understandably too, because Stylight’s feed specification has specific fields for color, size, material, and pattern.
Conversant is an interesting channel because they bought Commission Junction and keep gobbling up lots of affiliate channels.
Their feed specs aren’t terribly complex, but it is different than many other channels, with the usual suspects like product ID, description, title, and image links.
Using a feed platform like Feedonomics lets you easily create a feed for Conversant.