BigCommerce to Shopify migration,
done completely.
Your store’s orders, custom fields and gift certificates - moved to Shopify completely, reconciled to the penny, for a fixed price you know before we start.
£695, credited in full against your migration. Doesn’t deliver? Full refund - and you keep the report.
Migrations from £3,500 · most projects land between £5,000 and £10,000 · your exact price, fixed in writing, comes from the Readiness Report.
I run a maximum of two migrations at a time · 3 report slots remaining this month
WHY MOVE
Outgrowing BigCommerce shouldn’t cost you your history.
BigCommerce plans step up as your sales grow, the app ecosystem is a fraction of Shopify’s, and finding developers who know the platform gets harder every year. Merchants rarely leave because it’s broken - they leave because everything around it moved to Shopify.
I move BigCommerce stores to Shopify completely - custom fields and modifiers mapped, gift certificates and balances intact, every order reconciled to the penny - for a fixed price in writing before we start.
BigCommerce → SHOPIFY, PIECE BY PIECE
YOUR TOTAL INVOLVEMENT
One CSV export, one read-only API token, 30 minutes. You keep trading throughout - and I never need admin rights or customer passwords.
WHAT’S IN THE REPORT
One document. Your whole migration, priced.
Before you commit to anything, the report audits your actual BigCommerce data and puts your exact migration price in writing. Inside:
- Data inventory & custom attribute census
- Order history & tax audit
- Vouchers & discount liability
- Risk register
- Your fixed-price quote
STORE MIGRATION READINESS REPORT
REF 2026-041 · PREPARED FOR ACME TRADING LTD
1.0 DATA INVENTORY
2,481 products · 57 custom attributes
2.0 ORDER HISTORY AUDIT
142,306 orders · £4.2M · 10 years
3.0 TAX TREATMENT
UK VAT + EU OSS · 3 anomalies flagged
4.0 VOUCHER LIABILITY
312 codes · £8,940 outstanding
5.0 RISK REGISTER
2 high · 5 medium · 11 low
6.0 FIXED-PRICE QUOTE
£6,500 · 6-week programme (sample)
SAMPLE FIGURES, NOT A REAL CLIENT - YOUR REPORT IS BUILT FROM YOUR ACTUAL DATA
2003
shipping production e-commerce code since
1 engineer
quotes it, builds it, reconciles it
£0.00
target variance vs your accounts
Fixed £
price in writing before we start
QUESTIONS MERCHANTS ACTUALLY ASK
The honest answers, before you spend a penny.
What if my data’s a mess?
Messy data is normal after a decade of trading - it’s why the Readiness Report exists. The audit finds the anomalies (orphaned orders, conflicting attributes, half-deleted products) and prices the clean-up into your fixed quote, so mess never turns into a mid-project invoice.
Can my current agency do the design while you do the data?
Yes - it’s the arrangement I recommend. Your agency builds the theme and the brand experience; I handle the data, redirects and reconciliation. We share a staging store and a launch runbook, and neither of us blocks the other.
What happens to my SEO?
Every URL your store has ever ranked with gets a 301 redirect to its Shopify destination - the full map is a document you keep. Rankings survive migrations that are planned; they die in migrations that aren’t.
Do I have to stop trading?
No. The build happens against a staging store while you trade normally. At cutover I run a delta import to catch the orders placed in between - the switch itself is measured in minutes, not days.
Why not just use an import app?
Import tools are fine for a simple catalogue copy. But they move what fits Shopify’s standard fields: custom attributes flatten, historic taxes drop, voucher balances stay behind, and nobody reconciles the result against your accounts. The app is the easy 20% - you’d be doing the engineering yourself.
I use customer groups and group pricing - do they survive?
Yes. Customer groups map to Shopify tags and segments, and group pricing is rebuilt with Shopify’s native B2B tooling or discount logic depending on your plan. The Readiness Report sets out exactly which route fits your setup before you commit to anything.
Start with the Readiness Report. Know your number this month.
£695, delivered in ten working days: a full audit of your BigCommerce data, the risks, and your fixed migration price - most projects land between £5,000 and £10,000. Credited back in full if you go ahead.
THE GUARANTEE
If the report doesn’t tell you exactly what your migration involves and exactly what it will cost, I’ll refund the £695 in full. You keep the report.
I run a maximum of two migrations at a time · 3 report slots remaining this month