Creating modular email layouts in Hubspot - widget container restrictions

HubSpot’s email template restrictions are brutal. I’ve smacked into this wall countless times with clients wanting flexible designs.

The widget container limit exists because HubSpot treats emails differently than landing pages. Email clients are pickier about rendering, so they lock everything down.

After banging my head against this repeatedly, I learned something: don’t fight platform limitations. Instead of wrestling with HubSpot’s builder, I moved to external automation for modular assembly.

I build email blocks outside HubSpot, then use automation to mix and match based on triggers or data. True modularity without the template headaches.

The workflow grabs recipient data, figures out which blocks they need, assembles the right combo, then sends it through HubSpot. Way more flexible than forcing their builder to do things it can’t.

Bonus: you can A/B test different block combos automatically, personalize with complex logic, and keep branding consistent across variations.

Latenode nails this kind of email automation - connects with HubSpot’s API and handles the logic for dynamic assembly.