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Hack Your Way Around HighLevel’s Custom Object Limitations (Until They Catch Up)

If you’ve spent more than five minutes in HighLevel, you already know: it’s powerful… but sometimes, painfully unfinished.

One of the latest “power features” that’s got folks pumped—but also stumped—is Custom Objects.

They sound amazing in theory. But in practice? Let’s just say it’s not quite plug-and-play.

In this week’s live HL Pro Tools troubleshooting call, Andrew—a super sharp, power-user-type—brought up a tricky situation involving automating custom object relationships.

Let’s talk about what happened, how we fixed it, and what you can do to work around the current limitations without pulling your hair out.

The Problem: Custom Objects Aren’t So… Customizable (Yet)

Andrew was working with two types of data:

  • Properties (custom object)
  • Landlords (contacts)

He needed to automatically link properties to the right landlords inside HighLevel. Easy, right?

Not so fast. Turns out, there’s no built-in way to associate custom objects with contacts via workflows. Which means… manual input. Every. Single. Time.

A few groans were heard. We’ve all been there.

The Solution: The “Boomerang Hook” Trick

Here’s where it gets fun. Mario (our resident HighLevel whisperer) dropped a clever workaround we’ve started calling the Boomerang Hook 🪃.

How it works:

  1. 👋 When a contact is added (or updated), fire a webhook that sends their info out to an external script.
  2. 🧠 That script does the work of matching or generating the correct custom object (in Andrew’s case, the right property).
  3. 🔙 Then it immediately sends a POST request right back into HighLevel’s API, linking the object to the contact.

So you’re using the API to do what workflows should be able to do—but can’t (yet).

Yes, it’s a hack. But it works beautifully.

Key Takeaways

Here’s what you should walk away with:

Custom Objects don’t support native automation (for now).
⚙️ Use webhooks + API as a temporary workaround.
🪃 The Boomerang Hook method lets you associate objects and contacts automatically.
🚧 HighLevel is actively improving this area, but we’re not there just yet.

Look—I’m not anti-feature. I love what HighLevel is trying to do with Custom Objects. But sometimes, we’ve got to fill in the gaps ourselves. 

That’s why we show up every week on these calls—to figure out the real-life, actually-works-in-the-field fixes.

Want Help Implementing This Stuff?

If you’re juggling Custom Objects, workflows, or just trying to make HighLevel do what you promised your client it could do—we’ve got your back.

Come hang with us at hlprotools.com. We’ve helped over 5,000+ HighLevelers look like rockstars (without breaking a sweat).
No fluff. Just real support, real strategies, and real results.

Cool Free Thing: Testimonial Workflow (Steal It. It’s Yours.)

Before you can help businesses with your service, you need to build trust.
The fastest way to do that? ⭐️ Testimonials.

In the spirit of free stuff, I want to give you my team’s exact Testimonial Workflow—the same one we use to:

📥 Collect testimonials on autopilot
🎬 Clean them up so they’re actually usable
🗂 Store them so you can grab the perfect one anytime

Grab the free walkthrough here

Use it. Tweak it. Make it your own. Just don’t forget: proof > pitch every time.

Do you want the HighLevel fast-track?

We bundled all the goodness we created for ourselves over the past 18 months into a complete training to sell more & retain clients longer with HighLevel®.

About HL Pro Tools

HL Pro Tools is the only white label HighLevel® support with a money back guarantee to help your agency sell more & retain clients longer.

Do you want the HighLevel fast-track?

We bundled all the goodness we created for ourselves over the past 18 months into a complete training to sell more & retain clients longer with HighLevel®.