What does it actually cost to replatform your ecommerce buyer portal?
Plus, use our B2B Ecommerce Report Card to see where you are today.
License fees are the tip of the iceberg. Implementation, maintenance, integrations, apps, and fee structures decide what you actually pay over three years - and they shift dramatically based on your catalog, ERP, and buying complexity. Model your real number in 60 seconds.
Free · No email required to see your resultsAverage across the leading packaged B2B commerce platforms, at a normally scoped project. Three years measured from project kickoff.
Replatforming is not a flat three-year cost. Year 1 is the build; Years 2 and 3 are the run. Averaged across packaged platforms, expected scenario.
Same platforms, same requirements - three levels of scope control. This spread is a choice, not an unknown.
Total spend by component over the full three years, across packaged platforms. Modeled lines come from published pricing; estimated lines come from our implementation history.
No platform is cheapest for every merchant. For your profile, these are the variables that flip the ranking.
The band above is platform choice, not guesswork - and which platform sits at which end depends on assumptions we'd want to pressure-test with you. In a free 20-minute TCO review, we'll build your side-by-side comparison live and send you the full model to keep. No pitch, no obligation.
Three years from kickoff, not from launch. The clock starts the day you sign, which is how your CFO will budget it. That means the build period consumes part of the window: on a typical project, implementation runs 6 to 10 months, and maintenance, app subscriptions, and transaction fees only begin at go-live. We don't bill you for running a site that doesn't exist yet.
Run cost includes enhancement, not just keeping the lights on. The maintenance line covers platform ops, security patching, version upgrades, extension and integration upkeep, support, and a standing enhancement budget for post-launch roadmap work - the backlog every merchant builds in year two. We show the equivalent hours per month so you can sanity-check it against your own retainer math. A keep-the-lights-on-only number would be meaningfully lower, and would also be fiction.
Component model. Six components over three years: platform license, hosting, one-time implementation, ongoing run cost, third-party apps, and GMV-linked platform fees. That last line is the one most merchants miss at diligence, and it's the one your payment mix moves most: platforms that take a cut of transaction volume cost a card-heavy merchant far more than a PO-and-terms merchant doing identical revenue. Telling us your mix turns that line from an assumption into arithmetic.
Weighted, not bucketed. Capability requirements are weighted, so one advanced requirement nudges the estimate and several move it substantially. The refinement inputs adjust implementation, build duration, and run cost directly; leaving them at defaults produces a deliberately conservative middle case.
Ranges are modeled from Classy Llama's implementation experience with industrial and B2B merchants, published platform pricing, and partner benchmark data. These are planning estimates, not quotes. The most expensive line items depend more on scope discipline and partner quality than on the logo on the box - which is why we show three scope scenarios rather than one number, and build the precise comparison with you directly.
Platform-by-platform at the expected scenario - what the merchant receives on the 20-minute TCO review.
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