A 31-year-old hydraulic-hose distributor in Houston ($23M online) replatformed from Adobe Commerce to Shopify Plus on a Tuesday in late September. By the following Tuesday, organic non-brand sessions had fallen 47%. By the end of October, the founder had lost $190,000 in revenue, the agency that ran the migration was not returning emails, and the in-house SEO had been told to "just optimise the new site harder".

H1: Replatforming and Migration SEO for B2B Industrial Distributors

A 31-year-old hydraulic-hose distributor in Houston ($23M online) replatformed from Adobe Commerce to Shopify Plus on a Tuesday in late September. By the following Tuesday, organic non-brand sessions had fallen 47%. By the end of October, the founder had lost $190,000 in revenue, the agency that ran the migration was not returning emails, and the in-house SEO had been told to "just optimise the new site harder".

Six weeks later Lobit pulled the 11,800-page redirect map, ran the audit, and found the truth: 4,217 of the original URLs had been mapped to a generic /collections/all/ catch-all instead of the appropriate new PLP. Schema was missing on 92% of PDPs. Faceted-nav parameter handling had been inherited from the new theme's default (every facet combination indexed). Hreflang had been stripped during the migration and never restored.

None of that was bad luck. Every single problem was a known failure mode in B2B replatforming. Every single one is preventable when the migration is planned with SEO sitting at the table instead of being copied in on the final week.

That is what this service exists to do.

H2: Who this service is for

Read this if:

• You are 3 to 12 months out from a planned migration on Shopify Plus, BigCommerce, Adobe Commerce, Magento Open Source, Salesforce Commerce Cloud, NetSuite SuiteCommerce or a headless stack (Hydrogen, Catalyst, PWA Studio, Hyvä, Vue Storefront, Next Commerce)
• You replatformed in the last 18 months and the rankings never came back
• You are mid-migration and the agency running it does not have a written SEO migration plan
• Your platform decision is still on the table and you want SEO input before the contract is signed
• You sell across 5,000 to 50,000+ SKUs and have a real catalog risk if redirects, schema or hreflang break

If you fit any of those, Lobit is built for you.

H2: The 12-stream pre-launch playbook

A replatform is twelve workstreams happening in parallel. SEO sits inside each one or breaks at the seam. Here is the actual list Lobit runs:

Stream 1: URL architecture mapping

Every legacy URL has a destination. No exceptions, no catch-alls, no /404/ defaults, no "we will figure that out later".

For a 16,000-SKU distributor that typically means: 38,000+ legacy URLs (PDPs, PLPs, faceted variants worth keeping, blog posts, technical-spec PDFs, brand pages, downloadable SDS sheets, distributor-locator pages). Each one gets mapped one-to-one or one-to-best-match, signed off, version-controlled, and tested against staging.

Stream 2: 301 redirect rules

The map becomes the rule set. Implemented at server level where possible (Cloudflare Workers, Fastly VCL, NGINX rules, IIS rewrite rules) rather than application-level (slow, expensive at scale). Tested in batches of 500 with a status-code scanner before launch.

Stream 3: Schema migration

PDP schema, PLP schema, BreadcrumbList, Organization, FAQPage, Article, HowTo. Every node carries over with platform-appropriate adaptation. Schema is the single most common thing that gets dropped during migration; Lobit's standard QA suite checks it before staging signs off.

Stream 4: Faceted navigation strategy

The five-tier indexation hierarchy from our cornerstone blog ([[20_blog_faceted_navigation_b2b_distributor_catalogs]]) gets carried into the new platform. Tier-1 facets indexed, Tier-2 indexed with canonicals to canonical heads, Tier-3 noindexed, Tier-4 robots-blocked, Tier-5 stripped from the URL entirely.

Platform-specific implementation: Shopify Plus uses tag-based collections with metafields; BigCommerce uses Stencil with Layered Navigation; Adobe Commerce uses EAV with Mirasvit / Amasty Improved Layered Navigation; headless uses framework-level routing.

Stream 5: JavaScript rendering

If you are moving to Hydrogen, Catalyst, Vue Storefront or Next Commerce, the rendering strategy matters more than the platform choice. SSR for the templates that matter for SEO (PDP, PLP, home, brand, top blog), SSG where the content is stable, CSR only where the SEO impact is zero (cart, checkout, account).

Test in Google Search Console URL Inspection's rendered-HTML mode before launch on every template, every time.

Stream 6: hreflang continuity

If you operate across multiple countries, the hreflang cluster gets rebuilt from scratch with the new URLs. The 14 failure modes in our international SEO playbook ([[47_service_international_seo_b2b_industrial]]) all apply doubly during a migration.

Stream 7: XML sitemap reconstruction

New sitemaps generated, new categories (product, image, video, news), new submission to Google Search Console and Bing Webmaster Tools, old sitemaps deprecated cleanly. Sitemap index file structure planned to stay under the 50,000-URL fragment limit.

Stream 8: Internal linking

Internal links are usually database-driven (related products, "frequently bought with", brand cross-links, application-based cross-links). Each automated linking system on the legacy platform has to be ported or rebuilt on the new platform.

Lobit measures internal link continuity as a coverage percentage. A safe migration retains 92%+ of the high-value internal links.

Stream 9: Performance and Core Web Vitals

The new platform almost always has different LCP, INP, CLS profiles than the old one. Lobit sets the baseline on staging, identifies regressions, ships them as Day-1 punch-list items. Core Web Vitals is the GEO citation tiebreaker as of 2026 and the page-experience signal that touches 100% of SERPs.

Stream 10: Search Console and Bing Webmaster setup

New property added, both with-www and without-www verified, sitemap submitted, International Targeting refreshed, change-of-address requested if domain is changing, comparison reporting set up for legacy vs new.

Stream 11: Analytics continuity

Goal definitions, ecommerce tracking, server-side GA4 events, Microsoft Clarity, custom dimensions for SKU / brand / category — all rebuilt and verified in parallel. Without continuity, you cannot prove the migration worked or failed.

Stream 12: GEO and AI engine continuity

llms.txt (or equivalent), AI engine robots access (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot, Google-Extended), Wikidata entity, Wikipedia (where applicable), Crunchbase, ThomasNet, IndustrySelect and the country-specific directories all get a check-and-update pass.

You will not see this twelfth stream on a typical agency replatform plan. It is the single highest source of GEO ranking loss in 2026 migrations.

H2: The 90-day post-launch plan

Launch is day zero. The 90-day plan is what separates a clean migration from a slow-bleed migration.

Days 1 to 7: redirect map validation (98%+ of legacy URLs returning 301 to correct new URL on first request), schema validation pass across PDP / PLP / Brand / Blog, sitemap re-submission, GSC change-of-address (if domain change), Bing equivalent, page-by-page rendering check on top-100 templates, log analysis to confirm Googlebot is fetching the new URLs.

Days 7 to 30: crawl-budget monitoring, faceted parameter handling validation, internal-link continuity audit, CWV regression check, branded-search consistency check, AI Overview rendering check on top 50 commercial queries, manufacturer line-card pages re-verified.

Days 30 to 60: organic non-brand session benchmarking against pre-migration baseline (target: within -10% by day 60, +0% by day 90), ranking diffs analysis (top 500 keywords, segmented by intent), citation-share scoring across ChatGPT, Perplexity, Google AI Overviews, Gemini and Claude.

Days 60 to 90: identify and ship Day-90 punch-list (schema gaps, CWV regressions, internal-link gaps, hreflang inconsistencies). Issue formal Day-90 report. If we are below baseline at day 90, the engagement enters extended-warranty mode automatically; Lobit continues working at no additional fee until parity is restored.

That last clause is the one nobody else writes down. We do.

H2: The 18-month ranking curve, what is realistic

A well-managed replatform on a 5,000 to 50,000-SKU B2B catalog typically shows this pattern:

• Day 0 to 14: small dip (5% to 12% organic non-brand sessions) as Google re-indexes
• Day 14 to 30: dip widens slightly or stabilises depending on rendering and schema completeness (8% to 18% dip)
• Day 30 to 90: recovery curve back toward baseline; well-managed migrations are within -5% by day 90
• Day 90 to 180: small upside as new schema and improved platform stack take effect
• Day 180 to 540: sustained 15% to 40% organic non-brand gain over pre-migration baseline because the new platform finally unblocks the technical SEO that was throttled on the legacy stack

A poorly managed replatform looks completely different: a 30% to 60% drop within 30 days, no recovery curve, and an 18-month catch-up just to get back to baseline.

H2: Platform-specific notes from the trenches

Lobit has run or rescued 47 migrations between 2018 and 2026. Some pattern notes you will not find published elsewhere.

Magento Open Source / Adobe Commerce to Shopify Plus

Most common migration in 2026. Standard pitfalls: faceted nav explosion (Shopify Plus's tag-based facets index easily), losing EAV attribute depth in metafield mapping, B2B contract pricing migration (Shopify B2B is real but has fewer levers than Magento B2B), URL-rewrite handling for products.

BigCommerce Stencil to Catalyst

Catalyst is Next.js-based. SSR is on by default but every template needs validation. The migration tends to introduce CWV regressions on PLP under heavy faceted load. Custom-field-to-schema mapping needs to be deliberate.

NetSuite SuiteCommerce to BigCommerce or Shopify Plus

A common move for distributors who outgrew SuiteCommerce's SEO ceiling. Schema is often near-zero on the SuiteCommerce side; the migration is a chance to ship it properly.

Custom to anything

The riskiest migration class. Legacy custom systems often have non-standard URL patterns (POST-based search, session IDs in URLs, parameter-driven everything). The redirect map alone takes 6 to 10 weeks for a 20,000-SKU catalog.

Shopify Standard to Shopify Plus

The lightest-touch migration in the category. Mostly schema, B2B, and metafield uplift. Lobit treats this as a 60-day fixed-fee project, not a retainer.

H2: A worked example

A $31M industrial-electrical wholesale distributor in Toronto came to Lobit in 2024 four months before a Magento-2 to Shopify Plus migration. Twelve months in:

• 28,400 legacy URLs mapped to new URLs, 99.4% of legacy traffic redirected cleanly
• 14,200 PDPs, 1,180 PLPs and 247 brand pages migrated with full Product, BreadcrumbList, Organization and Article schema
• Faceted nav indexation reduced from 218,000 indexed parameter variants on the legacy site to 12,400 indexed canonical variants on the new site
• AI Overview citation share grew from 4.2% pre-migration to 22.8% twelve months post-migration
• Organic non-brand sessions: dipped 7% at day 30, recovered to baseline by day 73, +18% by day 180, +34% by day 360
• Attributed organic revenue: +$2.1M in the 12 months post-migration vs the 12 months pre-migration

The migration paid for itself in month 6. Without Lobit, based on the pattern from the agency they had previously interviewed, the projected loss would have been -22% organic at day 90 and a 14-month catch-up.

H2: How this connects to Lobit's other services

Replatforming usually overlaps with technical SEO ([[03_service_seo_for_industrial_distributors]]), GEO ([[04_service_geo_ai_search_optimization]]), link building ([[46_service_link_building_digital_pr_industrial]]) and platform-specific landings ([[28_seo_for_shopify_plus_b2b_industrial]], [[29_seo_for_bigcommerce_b2b_industrial]], [[30_seo_for_adobe_commerce_b2b_industrial]]).

If you are also entering a new country at the same time, sequence the replatform first, the international second, with at least 90 days between launches. See [[47_service_international_seo_b2b_industrial]].

H2: Pricing and engagement

Model A: Pre-launch migration retainer

$8,800 to $14,400 per month for 4 to 7 months (depending on catalog size).

Covers the full 12-stream playbook through launch day.

Best for: planned migrations 4+ months out.

Model B: Day-0 launch support and 90-day post-launch retainer

$28,000 to $46,000 fixed for the 90-day window.

Best for: migrations already in flight where SEO needs to be parachuted in.

Model C: Replatform rescue

$16,000 to $34,000 fixed for the 60-day rescue project.

Best for: migrations already launched where organic has dropped and the agency cannot stabilise it.

Lobit ranking-recovery success rate on Model C engagements: 89% at day 90, 96% at day 180.

All three covered by the Lobit money-back guarantee.

H2: How to start

1. Book a 30-minute Migration Strategy Call. Bring your timeline, your platform choice, and the agency or platform partner running the technical side. We will tell you in the call what the SEO risk surface looks like.
2. Lobit Migration Risk Audit ($2,800). Two-to-three-week deep audit. Output is a 64-page document, a redirect map gap analysis, a schema gap analysis, a faceted-nav indexation forecast, plus a 45-minute walkthrough. Yours regardless of next step.
3. Decide. Brief us, brief somebody else with the audit, or sit on it. The audit is yours.

CTA

Book a 30-minute Lobit Migration Strategy Call.

[Book a call button - calendar link]

or email neven@lobit.agency with subject "Migration strategy".

H2: One more thing

This page is built to find you when you Google "ecommerce migration SEO", "Magento to Shopify Plus migration agency", "BigCommerce replatform SEO", "replatform without losing rankings" or "B2B distributor migration SEO". If that is how you arrived, the page worked. If you are 6 weeks out from launch and you do not have a 12-stream plan in writing, we are the conversation worth having before it is too late.

P.S. The hose distributor that opened this page lost $190,000 in 6 weeks and another $340,000 in lost revenue across the next year of catch-up. Alfred wants you to leave with two numbers in your head: the cost of a bad migration on a 16,000-SKU catalog is roughly 8 to 12% of annual online revenue, sustained for 12 to 18 months. The cost of doing the migration properly with Lobit is roughly 0.4 to 0.7% of annual online revenue, paid once, recovered in month 5. The math should be very easy. Book the call before the contract with the new platform is signed, not after.

Sources internal: [[31_blog_replatforming_seo_industrial_distributors]], [[28_seo_for_shopify_plus_b2b_industrial]], [[29_seo_for_bigcommerce_b2b_industrial]], [[30_seo_for_adobe_commerce_b2b_industrial]], [[20_blog_faceted_navigation_b2b_distributor_catalogs]], [[25_blog_schema_org_b2b_industrial_pdps]], [[10_money_back_guarantee]].

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