Friday 15 Podcast

What Is the Best Way to Measure Customer Acquisition Costs in B2B?

Brian Beck and Andy Hoar examine how B2B companies should calculate customer acquisition costs, finding that 70% of practitioners favor a broad definition including sales and overhead.

Friday 15 Podcast

Key takeaways

  • A Master B2B LinkedIn poll found 70% of practitioners believe customer acquisition cost should be measured broadly including sales teams and overhead, while 30% prefer a narrow definition of direct marketing spend only.
  • Forrester research found only 48% of B2B-focused firms have a CMO or senior marketing executive reporting to the CEO, meaning over half lack senior marketing leadership to manage sophisticated metrics.
  • BigCommerce CEO Travis Hess reported strong Q4 earnings while doubling down on B2B strategy, noting significant interest from manufacturers and distributors looking to digitize operations on modest budgets.
  • The B2B customer journey involves buying committees with multiple influencers, raising the question of whether acquisition cost should be measured per persona or per company.
  • The hosts concluded that while broad measurement is theoretically correct, many companies default to narrow measurement because they lack access to data or expertise for comprehensive calculations.

BigCommerce doubles down on B2B

BigCommerce beat Q4 earnings and revenue estimates while emphasizing its B2B strategy. CEO Travis Hess noted significant greenfield opportunity with manufacturers and distributors looking to digitize operations quickly on modest budgets. Andy Hoar announced an upcoming live interview with Hess on LinkedIn where he agreed to take any and all questions. The hosts noted this continues the trend of platform vendors recognizing B2B as a growth market.

What is customer acquisition cost

Customer acquisition cost divides total acquisition spending by new customers acquired in a period. The denominator is straightforward: count new customers. The numerator is where complexity begins. Should it include only direct marketing spend like Google ads, email, trade shows, and promotions? Or should it also include sales team costs, brand awareness, marketing tools, onboarding, and overhead?

Spoiler alert: you should go broad versus narrow. The question is not why you should do this or which version you should choose. It’s how do you do it.

Andy Hoar, Master B2B

Why CAC matters

Customer acquisition cost provides multiple benefits. It measures financial efficiency and ROI of acquisition efforts. It helps optimize marketing budgets by comparing costs across channels. When paired with customer lifetime value, it enables growth planning: if CAC is low relative to CLV, scaling becomes viable. It provides competitive benchmarking and reveals pricing sensitivity. When paired with retention metrics, it shows whether companies are acquiring the right customers.

The B2B complexity

B2B customer journeys involve buying committees with multiple influencers. Acquiring a company may require convincing the CFO, CMO, internal champion, and others. Each person must be acquired individually before the company converts collectively. This raises the question of whether CAC should be measured per persona or per company. The hosts concluded it must be at the company level since companies pay bills, unlike B2C where individual consumers purchase.

The missing marketing leadership

Forrester research found only 48% of B2B-focused firms have a CMO or senior marketing executive reporting to the CEO. Prior research found only about 33% had a CMO specifically. The hosts attributed this to B2B companies being sales-led, with marketing functioning as sales support. When marketing reports through sales, sophisticated metrics like CAC become undervalued and ecommerce takes a backseat to traditional sales approaches.

If marketing is really just sales support, and the website is simply supporting the sales function, then CAC is going to be undercounted and sales-centric.

Andy Hoar, Master B2B

Attribution challenges

Even with marketing leadership, attribution remains difficult. A customer service agent spending 15 minutes in chat moving a prospect forward contributes to acquisition. That time has cost. Do you capture it? When products are researched online but ordered through EDI, how do you attribute digital influence? The hosts noted that B2C companies track these metrics religiously against competitors, representing significant opportunity for B2B to adopt similar data-driven approaches.

Poll results favor broad

A LinkedIn poll asked for the most reasonable way to measure customer acquisition cost in B2B commerce. Results showed 70% favor a broad definition including sales teams and overhead, while 30% prefer narrow direct marketing spend only. The hosts agreed broad is theoretically correct but wondered if a follow-up poll asking which approach companies use in practice would show the opposite, since many lack data access or CFO buy-in for comprehensive measurement.

Frequently asked questions

What is customer acquisition cost and why does it matter?

Customer acquisition cost divides total acquisition spending by the number of new customers acquired in a period. It measures financial efficiency, helps optimize marketing budgets across channels, enables growth planning when paired with customer lifetime value, provides competitive benchmarking, and reveals whether companies are acquiring the right customers when paired with retention metrics. The challenge is defining what costs belong in the numerator.

Should CAC include sales team costs and overhead?

A Master B2B LinkedIn poll found 70% of practitioners believe CAC should be measured broadly including sales teams, brand awareness, marketing tools, onboarding costs, and overhead. Only 30% prefer a narrow definition limited to direct marketing spend. The hosts agreed that broad measurement is theoretically correct since all those costs contribute to acquisition, but noted many companies lack the data or expertise to calculate comprehensively.

Why do most B2B companies lack marketing leadership?

Forrester research found only 48% of B2B-focused firms have a CMO or senior marketing executive reporting to the CEO. Prior research found only 33% had a CMO specifically. The hosts attributed this to B2B companies being sales-led, with marketing often functioning as sales support rather than a strategic function. This means many companies lack the leadership to implement sophisticated acquisition cost measurement.

How does the B2B buying journey complicate CAC measurement?

B2B purchases often involve buying committees with multiple influencers: the CFO, CMO, internal champion, and others. Companies must acquire each person individually and the company collectively. This raises the question of whether acquisition cost should be measured per persona or per company. The hosts concluded it must be at the company level since the company pays the bills, unlike B2C where individual consumers make purchases.

What is BigCommerce doing in B2B?

BigCommerce beat Q4 earnings and revenue estimates while doubling down on B2B strategy. CEO Travis Hess noted significant greenfield opportunity with manufacturers and distributors looking to digitize operations on modest budgets. Andy Hoar announced an upcoming interview with Hess where he agreed to take any and all questions about the company's B2B direction.

What happens when companies cannot measure CAC properly?

The hosts noted that if marketing is treated as sales support and reports through sales leadership, CAC becomes undercounted and sales-centric. Ecommerce takes a backseat. Companies miss the opportunity to optimize spend across channels, understand which acquisition methods are most efficient, and demonstrate marketing ROI. In B2C, these metrics are tracked religiously against competitors, but B2B companies have significant opportunity to adopt similar data-driven approaches.

Sources & methodology

  1. Friday 15 Podcast, Master B2B
  2. Master B2B LinkedIn poll, February 2025
  3. Forrester Research, B2B CMO study
  4. BigCommerce Q4 2024 earnings
Andy Hoar Andy Hoar
Co-Founder, Master B2B

Andy is a Co-Founder of Master B2B, founder of Paradigm B2B and author of the book Bot2Bot: The New Future of B2B Commerce. Andy is one of the leading global authorities on B2B commerce strategy.

Brian Beck Brian Beck
Co-Founder, Master B2B

Brian is a co-founder of Master B2B, Managing Partner of Amazon agency Enceiba, and author of the book "Billion Dollar B2B Ecommerce." Brian has also been C-level digital commerce executive with two decades of experience.

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