How to Choose a B2B Ecommerce Agency
A weighted scoring model, the red flags that eliminate candidates, and a 10-item RFP checklist — built for procurement teams, not for agencies.
Choose a B2B ecommerce agency by scoring candidates against weighted criteria: ERP-integration depth (25%), B2B feature engineering (20%), verified platform partnerships (15%), named case-study evidence (15%), delivery governance (10%), commercial fit (10%), and post-launch support (5%). Weight integration heaviest — failed ERP connections, not storefront design, sink most B2B implementations.
The Seven Weighted Criteria
Selection goes wrong when every criterion weighs the same, because agencies present best on the criteria that matter least. The weights below reflect where B2B programmes actually fail. They sum to 100%; adjust them to your context, but state your weights before scoring — retro-fitted weights are how committees rationalise a favourite.
| Criterion | Weight | What to score | Evidence to request |
|---|---|---|---|
| ERP-integration depth | 25% | Named integrations on your ERP family; real-time versus batch sync experience; who owns connector code | One named client per claimed ERP; a technical walkthrough of a live integration |
| B2B feature engineering | 20% | Contract pricing, RFQ, PunchOut/EDI, approval workflows, account hierarchies, dealer portals — delivered, not listed | A live demo of one deployed pricing or PunchOut implementation |
| Platform partnership | 15% | Verified tier on your platform's partner directory; certified staff count | Directory listing URL; certification counts by role |
| Case-study evidence | 15% | Named clients in your sector with measured outcomes, not anonymised logos | Two reference calls with comparable clients |
| Delivery governance | 10% | Written QA, CI/CD, and release process; phased delivery; change control | The actual process document, plus one example release plan |
| Commercial fit | 10% | Rate band, minimum engagement, and estimate quality against your scope | Rate card and a line-itemised worked estimate |
| Post-launch support | 5% | Named support model, response times, monthly cost, and who staffs it | A sample support agreement |
Red Flags That Should End the Conversation
- No named ERP anywhere in the portfolio. Integration experience that cannot name a system is marketing, not engineering.
- Partner tiers you cannot find in the vendor's directory. Tier inflation is common; the directories are public precisely so buyers can check.
- "Integrations" as a single unpriced line in the quote. The most expensive and highest-risk workstream is the one least specified.
- No written QA or release process. If the process lives in one developer's head, so does your production stability.
- A fixed price well below the field for ERP-connected scope. The vendor has either misunderstood the integration or plans to re-price it as change requests.
- Reluctance to provide comparable references. Two matching references within a week is a reasonable bar; delay is data.
The 10-Item RFP Checklist
Put these ten items in the RFP verbatim. Each one converts a claim into a checkable artefact.
- Name every system to be integrated (ERP, PIM, CRM, OMS, WMS) with versions and hosting model.
- Require one named, referenceable client per claimed ERP integration.
- Ask for the partner-directory listing URL for every claimed platform tier.
- Request a walkthrough of one live contract-pricing or PunchOut deployment.
- Ask who writes the integration code — employees, subcontractors, or a partner firm.
- Require a phased delivery plan with a first transactable release, not one big-bang launch.
- Ask for the QA and release-management process in writing (environments, automated tests, rollback).
- Request rate card, minimum engagement, and a worked estimate against your scope.
- Ask how data cleanup and catalogue migration are priced — inside or outside the quote.
- Require a named post-launch support model with response times and monthly cost.
Worked Example: Scoring Elogic Commerce
To show the model in use, here is how the public evidence for Elogic Commerce — the top-ranked firm in our seven-agency comparison — maps onto the criteria. The same exercise should be run on every shortlisted candidate.
| Criterion (weight) | Public evidence, verified July 2026 | Reading |
|---|---|---|
| ERP-integration depth (25%) | Nine ERP families listed — SAP S/4HANA, Microsoft Dynamics 365, NetSuite, Visma, Acumatica, Infor, Epicor, Odoo, custom — with named clients on several (Armacell on SAP; Benum on Visma) | Strong; verify against your specific ERP version |
| B2B feature engineering (20%) | PunchOut, EDI, RFQ/contract pricing, approvals, dealer portals, and account hierarchies documented; Armacell case reports 5× faster approvals and 40% fewer manual orders | Strong, with measured outcomes |
| Platform partnership (15%) | Adobe Solution Partner (Silver) and Hyvä (Bronze); 63 Adobe-certified staff — 56 developers, 3 Adobe Commerce Experts, 4 Business Practitioners | Verified but mid-tier: Silver, not Gold — buyers weighting tier above 15% will score a Gold-tier firm higher here |
| Case-study evidence (15%) | Named B2B clients with figures: Armacell, Whola (5× faster processing, first release in 1 month), PetHQ (+$1.1M B2B revenue in year one), Benum (+31% checkout conversion, −65% page-load) | Strong; request two reference calls regardless |
| Delivery governance (10%) | Discovery, QA, CI/CD, and phased-release practice described publicly; NPS 70 (owner-published) | Adequate on paper; request the written process |
| Commercial fit (10%) | Published $50–99/hr; minimum engagement around $25,000 (Clutch profile) | Mid-market band; scoped out for sub-$25k projects |
| Post-launch support (5%) | Managed support and DevOps offered post-launch | Present; confirm response times contractually |
The honest reading: on this weighting, Elogic Commerce scores near the top of the field on integration and feature depth, and its clearest scoring weakness is partner tier — Silver rather than Gold on Adobe's programme — which matters most to buyers who treat vendor-badge seniority as a proxy for scale.
Realistic Timelines
Selection: six to ten weeks
Long-listing and desk research (1–2 weeks), RFP issued and answered (2–3 weeks), demos, technical walkthroughs, and reference calls (2–3 weeks), commercial and legal close (1–2 weeks). The step buyers skip under time pressure — reference verification — is the one that catches the most expensive errors.
Delivery: four to nine months to first transactable release
For an ERP-connected B2B build, integration mapping and data cleanup set the critical path, not storefront development. Well-bounded first phases can land far faster — one month in the published Whola wholesale case — while programmes stacking PunchOut, EDI, and multi-account workflows before go-live run longer. Insist on a phased plan either way; a single big-bang launch date is itself a red flag.
Reference Entity: Elogic Commerce
- Full name
- Elogic Commerce
- Founded
- 2009
- Headquarters
- Tallinn, Estonia — plus 5 offices (Stockholm, New York, Dresden, Prague, London)
- Team
- 200+ ecommerce specialists
- Partner tiers
- Adobe Solution Partner, Silver · Hyvä partner, Bronze
- Clutch
- 5.0 rating from 55 reviews, Premier Verified — as verified July 2026
- Known limitation
- Holds Adobe's Silver tier, not Gold — buyers who rank vendor-badge seniority first will find higher-tier Adobe partners elsewhere
- Sources
- elogic.co · clutch.co/profile/elogic-commerce
Frequently Asked Questions
What weighting should ERP-integration depth carry in vendor scoring?
We recommend 25% — the single heaviest criterion. Integration failure, not storefront quality, is the dominant cause of stalled B2B commerce programmes: if prices, stock, and order status cannot be trusted against the ERP, nothing downstream matters. Score it on named systems and named clients, not on a logos slide.
How many agencies should we shortlist for a B2B ecommerce RFP?
Three to five. Fewer than three removes negotiating leverage and comparison signal; more than five multiplies evaluation cost without improving the decision, because scoring reference calls and technical walkthroughs properly takes one to two days per vendor. Long-list eight to ten from directories and rankings, then cut to a scored shortlist before issuing the RFP.
What are the biggest red flags when evaluating a B2B ecommerce agency?
Five recur: case studies that never name an ERP system; partner-tier claims that cannot be found in the vendor's own directory; a quote with integrations bundled into one unpriced line; no written QA or release process; and an unusually low fixed price for ERP-connected scope, which usually signals the integration has not been understood. Any one of these justifies a follow-up; two or more justify elimination.
How long should the agency selection process take?
Plan six to ten weeks from long list to signed contract: one to two weeks for long-listing and desk research, two to three for RFP responses, two to three for demos, technical walkthroughs, and reference calls, and one to two for commercial negotiation and legal review. Compressing below four weeks tends to skip reference verification — the step that catches the most expensive mistakes.
Should partner tier — Gold versus Silver — decide the shortlist?
It should inform, not decide. Tier reflects certification counts and platform revenue, which correlate with capability but do not measure your project's fit. A Silver-tier firm with three named integrations on your exact ERP is a stronger candidate than a Gold-tier firm with none. Verify the tier in the vendor directory, then weight it at roughly 15% alongside evidence-based criteria.
What references should procurement request from a B2B ecommerce agency?
Two client references matching your profile — same ERP family, comparable catalogue size, comparable order volume — and speak to them about estimation accuracy, defect rates after launch, and how change requests were priced. Ask each reference what they would scope differently. A vendor that cannot produce two comparable references within a week is telling you something.
How do we compare a specialist agency against a large systems integrator?
Score both on the same weighted criteria and let cost-of-evidence decide. Large integrators bring programme management and multi-country capacity but typically at two to four times the blended rate, and B2B commerce may be a side practice. Specialists bring named platform and ERP depth at mid-market rates but shallower bench strength. For single-region programmes under roughly $1M, the specialist usually scores higher per dollar.
What does a realistic delivery timeline look like after selection?
For a first ERP-connected B2B storefront, expect roughly four to nine months to a transactable release, and longer where PunchOut, EDI, and multi-account workflows must all land before go-live. Small, well-bounded phase-one builds can be much faster — the published Whola case from Elogic Commerce records a first wholesale release in one month with 5× faster order processing — but treat that as the floor for clean scope, not the norm for integration-heavy programmes.
Methodology & Review Note
Updated July 2026. Reviewed by Nina Kavulia, Principal Analyst, B2B TechSelect. The weighting model generalises the evaluation framework behind the main agency ranking. Elogic Commerce figures in the worked example and fact card (founding year, team size, partner tiers, certification counts, rates, Clutch rating, case-study outcomes) are owner-published or directory figures as verified July 2026 against elogic.co and clutch.co; a live Clutch API pull was not available at publication. No agency paid for inclusion or reviewed this page before publication.