CEO of GDT Agency, Henry Duy: “I Failed With Advertising Accounts So Many Times… I Lost Count”

Meeting Henry Duy in person, one is immediately struck by his calm, reserved, and highly practical demeanor. There is no loud self-promotion or flashy display of achievements, unlike many other CEOs in the industry. If you didn’t know beforehand, you might easily mistake him for a seasoned advertising infrastructure specialist—someone more accustomed to crisis handling than sitting in an executive chair.
As soon as he sat down, Henry Duy smiled lightly and spoke candidly:
“If you ask me how many times I’ve failed because of advertising accounts… honestly, I’ve lost count. Probably hundreds of times.”

“Failing” With Advertising Accounts – A Shared Pain in the Industry

Recalling his early years, Henry Duy shared that his journey began like that of most advertisers: running Facebook Ads on his own, learning platform policies through hard lessons, and bearing full responsibility for every risk involved.

“I clearly remember one case when I was scaling campaigns for a fashion store. The monthly budget had reached around 200 million VND, everything was running smoothly. The night before, I checked the data—ROI was 4.2. The next morning, I woke up to find that all five accounts had been permanently disabled.”

He continued:
“At that moment, I just stared at the screen. It felt like a slap in the face—not because of the money lost, but because all the data was gone, the algorithm learning history was wiped out, and the growth momentum we had spent three months building disappeared overnight.”

Such incidents didn’t just bring campaigns to a sudden halt; they triggered a chain reaction: explaining to clients, rebuilding everything from scratch, and restarting the learning phase at a much higher cost. According to Henry Duy, this is an experience that at least 90% of Facebook Ads practitioners have faced at least once.

Good at Running Ads, Yet Still Failing — Why?

When asked why many highly skilled advertisers—those who excel at creatives, targeting, and optimization—still repeatedly encounter account issues, Henry paused briefly before answering:
“The problem is that they’re very strong in execution, but weak in system infrastructure. Facebook doesn’t care how good you are. It only cares whether you’re trustworthy.”
He elaborated:
“Many people think that knowing how to optimize CPA, create viral content, or target the right audience is enough. But the truth is, once you start scaling, platforms don’t evaluate you by skill—they evaluate you by the trustworthiness of your account system.”
According to him, once a business aims for growth, the real risk is no longer about knowing how to run ads, but about system-level factors such as:
Payment history (whether it’s clean, consistent, and free of past issues)
The trust score assigned by Facebook to the Business Manager (invisible and never officially disclosed)
Business Manager structure (many setups violate best practices without users realizing it)
Long-term policy compliance (minor violations accumulated over time can become major problems)
Frequency of creating new accounts (constant creation is seen as spam behavior)
“Without a proper system, failure is only a matter of time. You might be fine today, but once you double the budget next week, everything can collapse.”

From Repeated Failures to the Idea of Building GDT Agency

Failing countless times—and more importantly, analyzing each case to uncover the root cause—helped Henry Duy identify a major gap in the market.
“I realized that most businesses don’t lack people who are good at running ads. What they lack is a stable account infrastructure that allows them to operate long-term. And that’s not something an average marketer can build alone.”
He recalled one of the first clients that pushed him to take this direction seriously: an e-commerce company with an eight-person marketing team, highly competent in content and data, yet forced to rebuild their Business Manager four times within six months.
“They called me at 11 p.m., almost pleading: ‘Is there any way we can stop living in constant fear that our accounts will be gone every morning?’”
That moment marked a turning point. Henry Duy decided to stop operating as a traditional performance agency. Instead, he founded GDT Agency, focusing entirely on advertising infrastructure—providing agency ad accounts for Facebook, Google, and TikTok, with strict risk management processes.
“I wanted to solve the problem at its root. Not by teaching people how to run ads better, but by giving them a safe foundation so they can focus on real marketing.”

“Agency Ad Accounts Are Not a Shortcut — They’re a Long-Term Path”

When discussing GDT Agency’s operating philosophy, Henry Duy emphasized one core principle:
“Agency accounts are not tools for bypassing rules or doing ‘grey-area’ activities.”
He addressed a common misconception:
“Many people think Agency Accounts exist to break rules. That’s completely wrong. Agency accounts are designed to operate in compliance, with risk control and accountability. They help businesses avoid constantly creating new accounts and living in fear every single day.”
He added:
“Some people believe agency accounts are for quick wins—run hard, burn the account, then switch to another. That mindset is fundamentally wrong. A proper agency ad account is meant for longevity, stability, and compliance with platform standards.”
Currently, GDT Agency focuses on three core pillars:
Accounts with clean history and high trust scores
No low-quality or questionable account sources.
Standardized setup from day one
Business Manager structures follow Meta, Google, and TikTok best practices.
24/7 incident support
From checkpoints and spending limits to Business Manager disablements.
“Our goal isn’t to help clients run the fastest—but to run the longest and most stable.”

An Unforgettable Failure Case

When asked about a failure that left a deep mark, Henry Duy paused, then smiled wryly:
“There was a case in 2022. The client was an electronics brand preparing for Black Friday. The budget was 800 million VND over five days. Everything had been thoroughly tested—creatives, audiences, landing pages. On paper, it was perfect.”
“At midnight, the campaign went live. By 2 a.m., the main account was checkpointed. My team fixed it by 5 a.m., but by then the algorithm was completely disrupted. CPM doubled, conversion rate dropped by 40%. The client lost nearly 200 million VND on day one with no results.”
He sighed:
“That was the first time I truly felt powerless—not because of lack of skill, but because the system wasn’t solid enough. From that point on, I committed to building backup frameworks for every major campaign, ensuring no business ever depends on a single account again.”

Looking Back at Failure: What Matters Most?