Stop replatforming. Start composing.

I keep having the same conversation. A B2B company spent two years and seven figures replatforming their ecommerce site. The new platform went live, and within six months they were already bumping into its limits. Now they’re shopping for the next one.

This cycle is wasteful, and it’s completely avoidable.

The replatform trap

The logic always sounds reasonable. Your current platform can’t handle the complexity of your catalog, your pricing rules, or your fulfillment workflows. A new platform promises to solve all of that in one shot. You buy the license, hire an agency, migrate the data, and pray.

Here’s what actually happens. The migration takes twice as long as estimated. Half your customizations don’t translate cleanly. Your ERP integration works in the demo but breaks on edge cases your operations team handles daily. And the features that sold you on the platform turn out to be bolted-on afterthoughts.

Gartner estimated that through 2025, more than 60% of B2B commerce platform selection decisions will be re-evaluated within two years of launch. I don’t think that number has improved. If anything, the pace of change in AI and customer expectations has made it worse.

The fundamental problem is the assumption that one platform can be your everything. It can’t. Not when your business rules are tangled with ERP logic, warehouse logistics, customer-specific pricing, and a product catalog that changes daily.

What composable actually means

Composable commerce gets thrown around as a buzzword, but the core idea is straightforward. Instead of one monolithic platform, you assemble best-of-breed services around a shared API layer. Your product information lives in a PIM. Your order management lives in an OMS. Your frontend is a headless build that pulls from whatever services it needs.

The shift is architectural, but it’s also organizational. You stop making big-bang platform decisions and start making smaller, reversible service decisions.

Akeneo published research showing that companies with a dedicated PIM strategy reduced time-to-market for new products by 40%. That’s not surprising. When product data has its own home, you stop fighting your ecommerce platform’s catalog limitations and start feeding clean data to every channel from a single source.

The ERP question

Here’s where most B2B companies get stuck. Your ERP is the system of record. It owns pricing, inventory, customer accounts, and order history. Every commerce touchpoint needs data from it. But ERPs were not designed to serve real-time product pages or handle merchandising rules.

The old approach was to sync everything into your commerce platform and hope the sync stayed current. The composable approach is different. You build an API integration layer, sometimes called an experience layer or middleware, that sits between your ERP and your frontend. It handles the translation.

This means your commerce experience isn’t limited by what your ERP can serve in real time. You cache what you can, fetch what you need, and transform data into the shape your storefront actually wants.

At Creatuity, we’ve found that this integration layer is the single most important piece of the architecture. Get it right, and you can swap your frontend, your search engine, or your PIM without reworking your ERP connection. Get it wrong, and you’ve just built a more expensive version of the monolith you were trying to escape.

Start with the pain point

You don’t need to rewrite everything at once. That’s the whole point.

If your site search is terrible, replace your search engine. Keep everything else. Bolt on Algolia or Elastic or whatever fits your catalog complexity. Measure the improvement.

If your product data is a mess, implement a PIM first. Clean the data. Feed it to your existing platform. You’ll see results before you touch the frontend.

If your checkout can’t handle complex B2B workflows like quote-to-order or multi-ship-to, build a headless checkout flow that connects to your OMS and ERP. Leave the rest of the site alone for now.

Each of these is a project with a clear scope, a measurable outcome, and a limited blast radius if something goes wrong. That’s the opposite of a replatform.

The hard part

Composable architecture is technically cleaner. But it demands more from your team. You need people who understand API design, service boundaries, and data contracts. You need a clear ownership model for each service. And you need the discipline to not let your integration layer become a new monolith.

This is where the decision gets real. If your team can’t own and operate multiple integrated services, composable will feel harder than the monolith it replaced. The fix isn’t to abandon the approach. It’s to invest in the team and the governance that makes it work.

Where to start this week

Map your current architecture. Draw the boxes. Show where data flows and where it doesn’t. Identify the one thing that causes the most pain for your customers or your operations team. That’s your first project.

Don’t wait for a budget cycle to start thinking about this. The companies that are winning in B2B ecommerce right now are the ones shipping incremental improvements every quarter, not the ones disappearing into three-year replatform projects.

What’s the one thing in your current setup that you’d replace first if you could do it this month?