Hello @Cariaba,

Thanks for sharing your question with the Klaviyo Community!

To automatically serve an email to contacts who have purchased two specific products in a flow, you can use a metric triggered flow based on the Placed Order event and use trigger splits with the filter definition of “Items contains Product A AND Items contains B”. This will allow contacts who have placed an order to trigger this flow who have purchased Product A AND Product B to be navigated down the YES path of this flow. Furthermore, you can target contacts who purchased Product A AND Product C by creating another trigger filter down the NO path of the original trigger split resulting in a cascade of filters based on who you want to target and what your overall goals for the flow is. 

I would further suggest taking a look at the following Help Center articles that dive further in understanding how to build this flow out and how trigger splits functions:

• Creating a Product-Specific Flow 
• How to Add a Trigger Split to a Flow
• How to Add a Conditional Split to a Flow
• How To Create a Post-Purchase Flow
• Guide to Creating a Metric-Triggered Flow

In addition to these great articles, other Community members have found success after reading some similar Community post along the same topic. I’ve included some below for your convenience:

I hope this helps!

David