Install the Fresh Relevance script and enable Cart Rebuild for Magento 2

In Magento, go to Stores > Configuration.

Expand the Fresh Relevance drop-down menu and select Fresh Relevance Script.

Set Enable Fresh Relevance Script to Yes, and enter your Website ID.
To find your website ID in Fresh Relevance, expand the User menu. The value you need is Account ID.
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Select Cart Rebuild Settings.

Expand the Cart Rebuild Redirect Page drop-down menu and select the page the Cart Rebuild functionality redirects to. We suggest cart or onepage, but you can also set a custom location.
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