Hi ​@jhorngacher, welcome to the community!

If I understand you correctly, you want to get the content of the Universal Block, and inject it into an existing template programmatically.  

I haven’t done this myself, but I think you can build a “hybrid template” which is a mixture of HTML and editable items, and reference a Universal Block’s ID with this snippet of code in your HTML:

<td data-klaviyo-region="true" data-klaviyo-region-width-pixels="600">     <div data-klaviyo-universal-block="block_id_1">&nbsp;<div></td>

Where “block_id_1” is the ID of the universal block that you stored earlier. 

Here’s some documentation of the “hybrid templates” that might be helpful:

• How to create a hybrid email template

Now note, this documentation assumes you’re building the HTML template manually as a “HTML Template” by copying/pasting in the HTML code.  You would do this programmatically instead - but I haven’t verified if this works.  Let us know!

Hi ​@retention , thanks for your answer about my question!

I have stumbled upon this documentation already and it’s not really helpful at all. If I like integrate this HTML-Code in a HTML-Block it doesn’t do anything. So not loading any Content at all into my mailing template.

To figure this out, heres what I do exactly:
→ I create the universal content via api

→ I created a template which should include this universal content created. My idea now is to store a dynamic property on a customers profile which includes the references ( ids ) from the universal_content which should be loaded inside the mail template and then send it.

With the given solution this is not working. Is there anything else or do I just have to like go the non-prefered way of storing HTML-Code inside a customers property?

Now I finally understood that you can create plain-html templates. Further to this I am now trying to set the dynamic property ( stored as a list ) and load the block with the id, for some reason klaviyo always states that the universal content doesn’t exist. Here’s my example code:
 

{% for item in person.ppi_reference %}
    <td data-klaviyo-region="true" data-klaviyo-region-width-pixels="600">      
      <div data-klaviyo-universal-block="{{ item }}">        
      </div>
    </td>
{% endfor %}

If I like set the blockId fixed the universalcontent is loaded without any errors, both have the same id!

I found the issue. I gotta have to reverse the logic on how to show the klavio-universal-block. Since dynamic setting of the id is not working, I am just gonna set the universal content as a fixed div and check if the id is in a profile’s reference. Here’s some example code:

{% if 'universalcontentid' in person.reference %}
    <td data-klaviyo-region="true" data-klaviyo-region-width-pixels="600">      
      <div data-klaviyo-universal-block="universalcontentid">        
      </div>
    </td>
{% endif %}