B2B Electronics E-commerce - Migration from Shopify to Open Mercato in 12 Weeks
Polish B2B industrial electronics shop (3,500 SKUs, 180 regular clients) migrated from Shopify B2B to Open Mercato. Reason: no variant configurator, growing Shopify Plus costs, vendor lock-in. Effect: -42% TCO, +47% conversion.
Industry
B2B e-commerce (electronics)
Scale
3,500 SKUs, 180 B2B clients, ~EUR 1.4M annually
Duration
Migration: 12 weeks · Results after 6 months
Measurable results
-42%
3-year TCO vs Shopify Plus
+47%
B2B shop conversion
+28%
Average order value
-58%
Ticket handling time
0
Plugins to maintain (from 12)
8 mies.
Migration payback
Modules used
- B2B Commerce - shop with configurator
- CRM with purchase history
- Variant product configurator
- AI assistant for customer service
- Symfonia integration (accounting)
- E-invoicing
Company context
The company sells industrial electronics (sensors, PLCs, automation components) mainly to manufacturers and system integrators. 180 regular B2B clients with negotiated pricing (5-25% per client discounts). Sales via online shop (Shopify B2B Plus) + sales contact for orders > EUR 2,300.
After 3 years on Shopify B2B — growing problems: Plus licence = $2,000/month and rising, no native variant configurator (a PLC has 8 config options), CRM via Zapier to HubSpot (3 additional systems to maintain), 12 paid plugins (pricing, configurator, ticketing, reports), full vendor lock-in.
Challenge
Three challenges: (1) migrate 180 clients + 3,500 SKUs + 5 years of order history without sales downtime, (2) rebuild the variant configurator (Shopify needed 3 plugins), (3) integrate with Symfonia (accountant only knew Symfonia) without disrupting accounting.
Additionally: clients 'liked' Shopify — intuitive checkout, familiar UI. Migration couldn't degrade UX, ideally had to improve it.
Solution
12-week migration: Weeks 1-2 audit of current setup and data (Shopify export, SKU cleanup, client validation), Weeks 3-4 new shop UX design (keep familiar elements + new configurator), Weeks 5-9 build (B2B shop, variant configurator, Symfonia integration, history migration), Week 10 testing with 10 clients, Week 11 parallel run (both shops available), Week 12 cutover + monitoring.
Key decisions: (1) variant configurator written as native Open Mercato module (vs 3 Shopify plugins), (2) AI assistant replaced chatbot and ticketing — customer asks in natural language, gets answer from real purchase history, (3) Symfonia stays for accounting via ODBC integration.
Results
After 6 months: 3-year TCO down 42% (eliminating Shopify Plus, HubSpot, 12 plugins = ~EUR 65k/3 years savings). B2B shop conversion up 47% — mainly via configurator (customer sees full price with options) and less friction (no switching between Shopify and HubSpot).
Average order value up 28% — cross-sell based on real purchase history (AI suggests 'customer X bought PLC Y and sensor Z — want to add Z?'). Ticket handling time down 58% — AI assistant answers 60% of questions without engaging support.
Zero plugins to maintain (from 12 on Shopify) — monthly savings of 2-3 dev hours patching Shopify update compatibility. Paid shop licences: EUR 0 (vs $2,000/month on Shopify Plus). Migration payback: 8 months.
“What I love most is that as we develop the product, we don't ask Shopify for permission. We just do it. It's a mindset shift, not just a tech shift.”
CTO
B2B electronics shop
Key takeaways
- 1Migrating from Shopify B2B = realistic chance of -40-50% TCO at 25+ users and 1,000+ SKUs
- 2Parallel run (both shops 1-2 weeks) eliminates sales loss risk during cutover
- 3Variant configurator = ROI by itself (47% conversion increase in this case)
- 4AI assistant replaces chatbot + ticketing = one integration, not three
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