Once you install the Ultimate Upsell app, create a new upsell and scroll down to "See advanced options". Click on it and grab the code snippet.
Paste this snippet from step 1 into your blog post content. Make sure you are in HTML mode in the content editor.
Customers can now buy right inside your posts.
Quick tip: sell products in context with the content :)
The screenshot above comes from Elements for life.
Tabarnapp's mission is to help you get the most of each visit on your Shopify store.