ERP Software for B2B eCommerce: How to Choose the Right System

Fig. ERP vs commerce platform.

What ERP works best with Shopify? Nobody optimizes an ERP for a storefront, so the question inverts the actual decision. The right question is which system fits your revenue band, entity structure, and pricing model, the criteria set out below. After which almost any modern ERP can be connected to almost any modern storefront. A commerce layer above the ERP handles the buyer experience while the ERP stays the system of record. Several platforms work this way; what separates them is how much B2B depth arrives built in rather than built by you.

An ERP gives the online channel the data that makes B2B selling possible: the price this customer has negotiated, the stock in the branch that serves them, the credit they have left, and the order history they reorder from. Seventy-three percent of B2B buyers are now comfortable placing orders above $50,000 online, up from 59 percent in 2022 (McKinsey).

Orders of that size do not get placed on trust in a web form. They get placed because the buyer can see terms they recognize.

Rather than list features, it helps to look at what actually happens inside the business.

• Customer-specific contract pricing. A distributor agrees annual terms with each account: net prices on some lines, percentage off list on others, volume breaks that reset quarterly. Sales reps have historically read these off a spreadsheet. For the online channel to work, the ERP must expose the applicable price per account, per SKU, at the moment of the request, not a list price with a discount applied afterward.
• Stock across multiple warehouses and branches. A national wholesaler holds the same product in eleven locations. The buyer in Leeds cares about the Leeds branch, then about what can be transferred overnight. The ERP needs to hold stock by location and support allocation logic the channel can query.
• Reordering and order history. Most B2B revenue is repeat business. The value of the online channel is often nothing more exotic than letting a buyer find what they bought in March and buy it again in four clicks. That history sits in the ERP.
• Account hierarchies and credit limits. A group buying entity with fifteen subsidiaries needs users mapped to the right accounts, with the right approval routes and the right credit exposure visible before checkout.
• Order and shipment status returned to the buyer. The single most requested self-service feature in B2B, and the one that removes the most phone calls.

Interestingly, investment in this area has cooled. Panorama recorded a drop in organizations deploying web-commerce significantly as part of their ERP projects, from 59.9 percent to 39.4 percent year over year, which reads less like retreat than like companies having already built the channel in an earlier cycle and now maintaining it.

Start with fit, not features. More than a quarter of ERP projects ran over budget in Panorama’s study, and the most common cause was an unexpected need for additional technology: misfits discovered late, then patched with scope expansion and custom builds. Choosing the best ERP for ecommerce means choosing the system you will not have to work around.

Seven criteria do most of the filtering.

Distribution, manufacturing, or a mix. Distribution systems are built around branch inventory, contract pricing, and high transaction counts. Manufacturing systems are built around bills of materials, routing, and capacity. A system strong in one is rarely equally strong in the other, and mixed-model businesses should decide which side generates the complexity that hurts.

One company or several. One country or twelve. One currency or multi-currency with automated rate updates. Entity structure is the fastest way to eliminate options, because consolidation and intercompany logic are either present or absent. There is no partial version.

Count your price lists. Count your contract structures. If the answer involves rebate accruals, tiered breaks that reset, or negotiated matrices per customer, the pricing engine becomes the deciding factor rather than a line item.

Vendor roadmaps are settling this argument without customers. Epicor has announced that all new features for Kinetic, Prophet 21, and BisTrack will be developed exclusively for Epicor Cloud, with no new features for on-premises versions after each product’s final on-prem release (Panorama, 2026). Gartner forecasts that 62 percent of cloud ERP spending will go to AI-enabled solutions by 2027, up from 14 percent in 2024. Staying on-premises increasingly means staying still.

Almost no comparison guide covers this, and it is the criterion that determines whether your ERP becomes an asset or an obstacle. MuleSoft’s 2026 Connectivity Benchmark Report, based on 1,050 IT leaders, found that only 27 percent of applications in the average enterprise are connected to anything else. MuleSoft sells integration software, so read the figure with that in mind, but the direction is not seriously disputed.

Ask what the ERP can actually expose. REST endpoints or a file drop at 2 a.m.? Webhooks or polling? Is there a sandbox? What are the rate limits, and what happens on a Black Friday-scale request volume? Can a partner get API documentation before you sign?

License cost is the visible number. The upgrade cycle is the expensive one. SAP has confirmed that mainstream maintenance for ERP 6.0 enhancement packages 6 to 8 ends on December 31, 2027, with optional extended maintenance to the end of 2030 at roughly a two-percentage-point premium. From release 2023, the S/4HANA maintenance window moved to seven years on a biennial release cycle, and SAP has committed to supporting at least one S/4HANA release until 2040. Whatever ecommerce ERP solution you land on, ask when the next mandatory version event falls and what it will consume.

Can you hire for it in your region? Panorama recorded organizations increasingly buying process and change guidance rather than selection support: business process management guidance rose from 40.4 percent to 50.0 percent of engagements, organizational change management from 38.4 percent to 46.8 percent. The implementation partner tends to determine outcomes more than the license does.

Take these ten questions to every vendor demo. They are deliberately not a restatement of the criteria above; they are the things you find out too late.

1. Does the system expose REST APIs for pricing, inventory, orders, and accounts, and can we see the documentation now?
2. Is there a sandbox environment, and is it included or billed separately?
3. What are the API rate limits, and how does the system behave when they are exceeded?
4. Does the pricing engine live in the ERP, or will we need a second one?
5. How many legal entities and currencies does the standard license cover?
6. What is the release cadence, and are upgrades mandatory?
7. What happened to the last three customers who left, and how did they get their data out?
8. How many certified implementation partners operate in our region?
9. Which reference customers in our vertical will speak to us unaccompanied?
10. What is the five-year cost including licenses, hosting, partner fees, and one major upgrade?

Whichever ERP you choose, the commerce layer connects to it. See how Virto integrates with ERP systems.

Seven systems account for most B2B ecommerce deployments. Panorama’s independent tiering maps them to revenue bands: Tier I for enterprises above $750 million (SAP S/4HANA, Oracle Fusion Cloud, Infor CloudSuite), Upper Tier II for $250–750 million (Dynamics 365 Finance, IFS Cloud, Sage X3, Epicor Kinetic), and Lower Tier II for $10–250 million (NetSuite ERP, SYSPRO, Acumatica).

What are the top 3 ERP systems? By deployment volume across mid-market and enterprise B2B, SAP, Oracle NetSuite, and Microsoft Dynamics 365. That answer is also close to useless, because the top three for a $40 million electrical wholesaler and the top three for a $2 billion manufacturer share no members. Read the table below against your revenue band and pricing complexity rather than against the league table.