First, head over to https://app.datatrics.com/integrations/feed/. Click on the "Install" button, and you will be redirected to the settings screen:
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In order to connect the feed you need to fill in the required fields.

If you would like to get more information about the structure of the product feed we would recommend reading the following documentation:
​https://help.datatrics.com/en/articles/2084491-product-feed
​https://help.datatrics.com/en/articles/5491063-inspirational-e-commerce-feed