How to send sizes of specific products in Klaviyo after customer views the product

Hi @rohan12334 ,

Welcome to the Community!

This is a great question about the Shopify data available in Klaviyo. 

First I’d just like to point out that Size data will likely not be available from Shopify with the Viewed Product metrics alone. This is because website users can browse a product page on your Shopify site without selecting a size. Instead, you would be able to utilize the size data once an item has been Added to Cart. 

That clarification aside, it is possible to include product size variant details in your dynamic product blocks in Abandoned Cart flows, Post-Purchase flows, and any other message that considers cart or checkout data from Shopify. 

Depending on your Shopify configuration, this data may be denoted as a Variant Name or Variant Option (see Shopify data reference Help Center article for details). Here are some common variables I have seen in Klaviyo:

{{ event.extra.line_items.0.presentment_variant_title|default:'' }}
{{ event.extra.line_items.0.product.variant.options.Size|default:'' }}
{{ event.extra.line_items.0.variant_title|default:'' }}

The best way to check how your Shopify store sends data to Klaviyo would be to open your Abandoned Cart block (if this is the flow you wish to add Size data too) and open the Preview & Test option from the individual email design screen:

Here, you can preview the Shopify variables available to be used in the flow:

Hovering over and clicking on these line items will allow you to copy and paste the variable code for the Size attribute into your dynamic block. 

You can read further about How to build dynamic blocks in a flow email if you need further guidance on how to add these variables to your message. 

--

Hope this helps!

-- Ashley Ismailovski