Industry Truths6 min read

Can Marketing Agency Performance Guarantees Be Misleading?

Author

Digitopia LB

Published December 05, 2024

Reviewed August 6, 2026

Can Marketing Agency Performance Guarantees Be Misleading?

Executive Summary

  • Guarantees incentivize agencies to bid on your own Brand Name keywords (which have high ROAS but add no value).
  • They often use "View-Through Attribution" to claim credit for sales that would have happened anyway.
  • Action: Look for "Alignment," not Guarantees. Pay based on profit growth, not vanity ROAS.

A promise such as "3x ROAS or we work for free" sounds reassuring, but the definition, attribution window, exclusions, and remedy matter. Auction conditions and business performance cannot be controlled by the agency alone.

The "Brand Search" Trap

The easiest way to hit a fake ROAS target is to run ads targeting people who are already searching for your name.

If someone Googles "Nike Shoes," they are already going to buy. If an agency runs an ad there, they get a 20x ROAS. They show you the report, claim their fee, and you effectively paid double for a customer you already had. This is called Cannibalization.

The "View-Through" Attribution Trick

Agencies will often enable "1-Day View" attribution. This means if someone sees your ad, scrolls past, but buys 5 hours later from an email you sent, the Agency claims credit. They are taking credit for your email team's work.

The Solution: Demand "Click-Only" attribution reporting or use a third-party tool like TripleWhale to verify the truth.

?Frequently Asked Questions

Some guarantees can be legitimate contractual offers, but examine how ROAS is defined, which sales count, the attribution window, exclusions, and what happens if the target is missed.
Some agencies inflate ROAS by targeting branded searches, using view-through attribution, or taking credit for conversions that would have happened organically.
Brand cannibalization happens when ads target people already searching for your brand name, effectively paying for customers you likely would have acquired anyway.
Guarantees can incentivize short-term reporting tricks instead of long-term business growth and profitability.
Businesses should prioritize transparency, attribution accuracy, communication, and profit-focused strategies instead of vanity metrics.

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