Hi @Stijn Meyvaert - glad to see you back in the community!

Yes, you’re on the right track with your plan for the flow trigger and flow filters.

When you’re trying to give brand-specific product recommendations like this, one of the best things you can do is give yourself the ability to add additional filters or conditional splits based on a product collection. That minimizes the amount of OR conditions you’re using, so the flow audience logic is more precise and reliable. 

1. I recommend you create a collection in Shopify (or wherever your ecommerce store is hosted) that is specific to each brand of helmets and helmet bags. These don’t have to be publicly listed on your store - they’re built for the purpose of helping you more accurately reference product data in Klaviyo. 

2. Then, you can create a Product Feed in Klaviyo that’s tied to one collection or another. That enables you to create product blocks in flow emails that will display the products in that Product Feed you created. You can repeat this as many times as needed, so each email shows the correct brand.

3. Next, there are a couple different ways to ensure the right email goes to the right person.
   
   The simplest method is to create a conditional split (or several) so you can group people by brand purchased. The slightly more complicated method is to have one email hold multiple versions of the product block and use a Show/Hide condition based on the item (one helmet brand) someone purchased to display the product block that’s tied to the matching product collection (the same brand’s helmet bag”. 
    

   

   
   
   There is an alternate path where you could leverage custom profile properties to identify the brand of helmet and helmet bag, and segment people based on this, but that requires a little more initial setup. If you’re curious, I could share more info on how that might work…

Warmly,

Gabrielle