You should have one (1) rule in Form Editor » Custom CSS

Only so many “banes of your existence” before the term is meaningless. But form-level Custom CSS (Form Settings » Form Theme » ⚙) makes the cut for me. That Custom CSS box

Your choice: Scylla, Charybdis, or returning 𝑛𝑢𝑙𝑙 in Velocity

Velocity’s quirky treatment of null could drive a mortal mad. As a language aimed at web developers rather than “real” developers, VTL attempts to smooth over Java’s strict

Properly trimming Strings in Velocity takes more than trim()

We sometimes see people trim()-ing Strings in Velocity before comparing them, like: #if( $lead.Region.trim().equals("Northeast") ) Without evidence that leads or apps have added extra

Show Known Visitor HTML on other open tabs after a form submit

A fun use for BroadcastChannel, a browser feature typically used by web apps (not mere LPs).

Creating DNS CAA records for Marketo-hosted domains

If you can make IT happy with minimal impact, do it. (But stay skeptical of claimed “security issues” in any MAP, as they’re usually false alarms.)

Adding hidden fields (e.g. UTMs) to Marketo Dynamic Chat dialogues

They’ll tell you it can’t be done. But they didn’t count on the power of having no social life.

Avoid log purge surprises with “Last [Activity] Week Ending” fields

You’ll wish you’d done this 90 days ago.

Yes, you can use Velocity in the native Preheader area, just not the way you’re used to

Welcome to Workaround Town. Ain’t no documentation-believin’ newbies round here.