How can I choose the minimum price per product?

This is how you can showcase the minimum price per brand/category in your feed

In order to display minimum price per Category/Brand/Color/Product Type, set an action of Group by.

For example: You wish to display the minimum price per Brand.

Set an action on the brand column of Group By > Aggregate minimum on > Price > remove the selection of Reduce number of rows (this option will reduce your number of items in the feed and will leave only 1 row per parameter).

Feeditor will organize the minimum price per brand, while your feed will still include all range of available prices. 

NOTE: This feature will be useful to you if you want your ads to display the lowest price available in your inventory. Use the Category/Brand/Color/Product Type as a dynamic value in your Search or Shopping campaign.