Headless commerce has become one of the most debated topics in B2B e-commerce architecture. The promise of decoupling the front-end experience from the back-end commerce engine appeals to companies seeking flexibility and innovation speed. But is headless the right choice for every B2B organization, or is it the technology equivalent of buying an 18-piece grooming kit when you only need two clips?
The debate format
Adrienne Hartman from JJ Keller argued for full-stack solutions, bringing two decades of e-commerce experience including multiple re-platforming projects. On the headless side, Vincent Mugavero from Carrier Enterprise shared his experience transitioning from a monolithic platform to a headless Magento PWA implementation, joined by Peter Sheldon from Adobe who offered perspective from a vendor that offers both approaches.
Round 1: Flexibility versus complexity
Team Headless opened with the customer experience argument. Vincent reported that Carrier Enterprise cut page load speeds in half after moving to a headless PWA architecture, delivering what he called “a super agile, lightning-fast mobile app-like experience that even B2B customers deserve.”
Team Full Stack countered that customer experience improvements do not require headless. Modern full-stack platforms offer API-forward architectures with decoupled components, without requiring a completely custom front end.
All the major players now have API-forward architectures. It does not have to be full-on headless, roll-your-own storefront to be flexible and to present an amazing customer experience.
Adrienne Hartman, JJ Keller
Hartman also raised the accountability argument: with a single vendor providing both front end and back end, there is “one ass to kick if something goes wrong.” The audience split almost evenly on this round, with slight preference for headless.
Round 2: Digital maturity and use cases
The second round examined whether headless makes sense for all organizations or only those with specific profiles. Team Headless argued that headless is future-proofing: a five-year technology investment versus a two-year solution that will require re-platforming.
Peter Sheldon offered a balanced perspective that surprised the hosts by partially supporting full-stack.
When you are buying a headless platform, you are buying the space shuttle. If you do not have the astronauts and the team that knows how to fly the space shuttle, do you need it?
Peter Sheldon, Adobe
He argued that organizations with limited IT resources have “only one approach” available: full-stack, because they lack the budget and talent to build and maintain custom front ends. The audience voted 60-40 that headless does not only work for specific profiles, suggesting broader applicability than the panelists expected.
Round 3: Over-buying flexibility
The final round addressed whether companies risk over-buying capabilities they will never use. Hartman shared a cautionary tale of a company that spent two years gold-plating a headless implementation before scrapping it entirely and returning to a simpler approach.
I do not want to gold-plate something future-proofing it for some thing that may or may not happen eight years down the line when I can deliver value quickly in an economical way.
Adrienne Hartman, JJ Keller
Vincent pushed back, arguing that partnering with experienced agencies allows even companies with limited internal resources to implement headless successfully. The audience narrowly agreed that companies are over-buying with headless, voting 52-48.
The verdict: It depends
The debate ended without a clear winner, reflecting the reality that architecture choices depend heavily on organizational context. Peter Sheldon closed with an important clarification about terminology.
I absolutely hate the term headless. It is very misleading. What headless is really about is decoupling the complexities of the back end from the front end so that a front-end developer does not have to know anything about the back-end platform.
Peter Sheldon, Adobe
The term “headless” suggests you need multiple heads or no head at all. In reality, every commerce site needs a front end. The question is whether that front end is tightly coupled to the commerce engine or built independently using APIs.
Practical implications for B2B leaders
Four questions emerged to guide the decision. First, what is your digital maturity and IT capability? Organizations without experienced development teams should start with full-stack platforms that offer faster deployment. Second, do you have legitimate use cases requiring multiple touch points, such as native apps, IoT integration, or experiences embedded in marketing sites? If not, the flexibility of headless may go unused. Third, are you prepared to partner with agencies long-term, or do you want to bring capabilities in-house? Headless implementations often create ongoing agency dependencies. Fourth, what is your realistic timeline? Companies trying to get to market quickly may find that headless extends rather than accelerates their launch.
The hosts agreed on one point: take your time. Re-platforming is painful and expensive. Whether you choose headless or full-stack, the decision should be made carefully based on your actual use cases, not based on what sounds most innovative.