</> How to make embedded code from CANVA template shows up in the preview?

Max Classic
1

Marketing > Email & Broadcasts > New broadcast > Email > then I chose Newsletter from Gallery section.

I erased all the content and added a </> Code Block. There I pasted the code generated in CANVA.

  1. I can see the design placed in the body of the newsletter. Once I click preview, there is no content at all.

  2. It marks the design as “spam.”

As my team is not good at coding, I can’t create all the templates in code for them to substitute images and text in HTML. Could you let me know why this is not working or if another option exists to make it work?

Thanks.