Customizing the Event Builder isn’t about adding more fields. It’s about deciding which details are non-negotiable at the moment an event is created.
Here’s where teams typically draw that line.
If your team depends on things like event type, registrant limits, or cost, those shouldn’t live in someone’s memory or get filled in later.
Teams often make fields required when:
events need approval before promotion
capacity impacts venue, staffing, or experience
cost needs to be locked before ROI tracking starts
The Event Builder becomes the checkpoint, not a suggestion.
A webinar, an executive dinner, and a multi-city roadshow don’t need the same information — but they all need complete information.
Custom properties let teams capture:
internal event classifications
format-specific constraints like caps or pricing
attributes that drive segmentation and reporting
This is how teams avoid forcing wildly different events through the same narrow setup flow.
Fast event creation is useless if the data is incomplete.
By surfacing the right properties during setup, teams avoid:
retroactively fixing event records
broken workflows that depend on missing fields
reporting gaps that show up after the event is over
The Builder shifts cleanup work earlier — when it’s easier and cheaper to fix.
Some teams always need a featured image.
Others care about internal ownership or event tiering.
Some track cost, others don’t.
Because the Event Builder pulls directly from your hapily Event object in HubSpot, you’re not limited to a predefined schema.
You can surface the fields you already use — or create new ones when gaps appear — and make them part of the standard event creation flow.
Customizing the Event Builder is how teams decide what “done” looks like when an event is created.
Once those expectations are set, every event starts from a cleaner, more consistent foundation — without follow-ups, reminders, or manual fixes.
And that’s when event setup stops being loose and starts being reliable.