B2B Ecommerce Replatforming Cost Calculator

Total cost of ownership across Shopify Plus, Adobe Commerce, Adobe Commerce Cloud, and BigCommerce — calibrated for industrial B2B replatforming. Plug in your variables and get a solid directional estimate you and your CFO can work with.

Industrial B2B Replatforming

3-Year Total Cost of Ownership Calculator

Compare 3-year TCO across Shopify Plus, Adobe Commerce (PaaS and SaaS), BigCommerce Enterprise, and custom-built platforms — calibrated to your business.

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Your 3-year TCO comparison

Cost breakdown (3-year)

Cost category Adobe Commerce PaaS Adobe Commerce SaaS BigCommerce Ent. Shopify Plus Custom-Built

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Sources: The Industrial B2B Replatforming Playbook (Classy Llama, 2026), aggregated from commercetools, Gartner, Forrester, IDC, Qualimero, and vendor pricing. Ranges are directional estimates calibrated to inputs.

Adobe Commerce PaaS vs SaaS. Both deployments run the same Adobe Commerce application; what differs is the scope of what Adobe manages on the merchant's behalf. PaaS (Platform-as-a-Service) bundles AWS hosting, Fastly CDN+WAF, New Relic APM, ECE-Tools, three managed environments (Integration, Staging, Production), automated backups, and 24/7 support — but the merchant retains responsibility for application security patches (Adobe ships them, merchant deploys), extension licenses, custom code maintenance, and upgrade projects ($40–80K each). SaaS (Software-as-a-Service) extends Adobe's managed scope further: most server-side and application-side patching responsibilities move to Adobe, reducing ongoing operational spend roughly 30% versus PaaS. The license premium for SaaS reflects this expanded bundle. Native B2B Edition is included at no extra cost in both deployments — there is no separate B2B SKU. Adobe does not publish license tiers; values shown are agency-reported estimates anchored to a 2024–2025 enterprise quote (~$512K license at est. $50–200M GMV). Above $250M GMV, license pricing becomes opaque due to bundled AEM/Analytics enterprise agreements.

Platform and payment processing fees are excluded across all platforms. At the contracted-enterprise tier this calculator targets ($30M–$1B GMV), platform transaction fees do not differentiate TCO: BigCommerce's Open Payment Provider Fee is exempt for Enterprise/Performance plans contracted through BigCommerce sales (published policy, confirmed with BigCommerce sales leadership); Shopify Plus's 0.2% on non-Shopify-Payments transactions is universally either waived through Shopify Payments adoption or negotiated to zero in enterprise contracts; Adobe Commerce (PaaS and SaaS) has no platform transaction fee. Payment processing fees (~2.5–3% + $0.30 per transaction, paid to Stripe, Braintree, PayPal, Adyen, or similar) apply equally on every platform and are excluded for the same reason — every merchant pays them regardless of platform choice. Contact us for a line-item model that incorporates platform-specific fee assumptions if your contract structure differs.
How much does it cost to replatform to Shopify Plus for industrial B2B?

For a mid-market merchant ($15–30M annual GMV) with moderate B2B complexity (CPQ, approvals, punchout) and NetSuite integration, a Shopify Plus replatform typically runs $245K in one-time implementation and around $650K in 3-year total cost of ownership. Adobe Commerce lands roughly 45% higher at the same scope.

Both deployment models run the same Adobe Commerce application. PaaS (Platform-as-a-Service) bundles AWS hosting, Fastly CDN, New Relic monitoring, three managed environments, and 24/7 support — but the merchant retains application patching, extension licenses, and upgrade projects. SaaS extends Adobe’s managed scope further, reducing operational spend roughly 30% versus PaaS in exchange for a higher license fee. The native B2B Edition is included in both deployments at no extra cost.

Adobe is phasing out on-prem positioning. It’s no longer featured on Adobe’s main pricing page and remains primarily a renewal/legacy story rather than a new-deal pricing track in 2026. New Adobe Commerce buyers in 2026 choose between PaaS and SaaS deployments.

Where do these numbers come from?

Values are calibrated against Classy Llama’s industrial B2B engagement data, the Industrial B2B Replatforming Playbook (Classy Llama, 2026), and aggregated benchmarks from commercetools, Gartner, Forrester, IDC, Qualimero, and published vendor pricing. Estimates are directional; for a line-item TCO model specific to your business, request a detailed report.