After linking your source feed to your Marpipe account, the next step is to create a template. You will use Marpipe's ad builder to design an ad with placeholder elements.
You can link certain layers to columns in your product catalog by clicking layer option - "Link to column"
The name of the variant under the linked layer will change to 'feed_column name'
but certain common column names have standard naming conventions:
Use the pin icon on any layers that you do not want to connect to a feed column.