BigCommerce to Shopify Migration
Use Nventory's product sync engine to move your BigCommerce catalog to Shopify — products, variants, images, and pricing all transfer automatically. Keep both stores live with synced inventory while you test Shopify, and switch only when you're confident.
Migration Timeline
Estimated timeline for syncing your BigCommerce product catalog to Shopify using Nventory.
Migration with custom data or multiple integrations
Factors That Affect Timeline
- •Number of products and variants, especially those exceeding Shopify's 100-variant limit requiring restructuring
- •Catalog size and custom field complexity requiring metafield mapping on Shopify
- •Product image count and total file size affecting transfer time to Shopify's CDN
- •Number of product categories and depth of the category tree requiring collection mapping
What Moves to Shopify
Nventory moves your product catalog so you can start selling on Shopify without rebuilding from scratch. Here's exactly what transfers and what doesn't.
Nventory Handles This
- Products & Variants
Nventory transforms BigCommerce products with options and SKUs into Shopify products with variants.
- Inventory Levels
Nventory syncs BigCommerce stock quantities to Shopify inventory levels per location.
- Categories & Collections
Nventory converts BigCommerce's nested category tree to Shopify collections.
- Product Images
Nventory transfers product images from BigCommerce to Shopify's CDN.
- Product Pricing
Nventory transfers regular prices, sale prices, and MAP pricing from BigCommerce to Shopify's price and compare-at-price fields.
You'll Handle Separately
- Customer accounts and data
Customer databases, saved addresses, and login credentials cannot be transferred between platforms through Nventory
- Order history
Historical orders and transaction records from the source platform cannot be migrated to the destination platform
- Products with more than 100 variants
BigCommerce allows up to 600 variants per product while Shopify caps at 100 with three option axes. Products exceeding this limit must be split into multiple Shopify products or restructured using combined listings on Shopify, which changes the product URL and browsing experience.
- BigCommerce native B2B features on non-Plus Shopify
BigCommerce includes customer groups, price lists, and payment method restrictions on standard plans. These B2B features require Shopify Plus on Shopify, which costs significantly more. Merchants on standard Shopify plans lose native B2B capability unless they use third-party apps.
- BigCommerce faceted search and product filtering
BigCommerce's built-in faceted search with custom filter configurations does not transfer to Shopify. Shopify's native filtering is more limited and advanced faceted search requires a Shopify app like Searchanise or Boost Commerce, plus manual filter configuration.
Powered by Nventory's product sync engine: The same reliable sync that keeps multichannel sellers in stock across platforms also powers your migration. Your BigCommerce catalog syncs to Shopify and stays in sync — run both stores in parallel until you're ready to switch.
Things to Consider
Platform-specific details and how they affect this integration.
BigCommerce products with more than 100 variants or more than three option axes cannot sync to Shopify as-is. This affects product types like configurable furniture (size x material x color x finish), custom apparel (size x color x length x fit), and industrial parts with multiple specifications. Each over-limit product needs a restructuring decision before sync.
Nventory scans your BigCommerce catalog and flags every product exceeding Shopify's variant or option limits. For each flagged product, Nventory proposes a restructuring plan — combined listings, product splits, or option consolidation. The plan is reviewed and approved before sync execution.
Who Should Migrate from BigCommerce to Shopify
Common scenarios where a BigCommerce to Shopify migration makes sense.
Migration Process
A structured, step-by-step migration through Nventory.
BigCommerce → Nventory → Shopify
Connect Both Platforms
Connect your BigCommerce store and your new Shopify store to Nventory. Nventory reads your BigCommerce product catalog, options, custom fields, and categories to prepare the data for sync.
Sync Your Product Catalog
Nventory syncs your complete product catalog from BigCommerce to Shopify — products, variants, images, and pricing transfer automatically. Product options map to Shopify variants and images re-host on Shopify's CDN.
Enable Inventory Sync
Nventory enables real-time inventory sync between BigCommerce and Shopify. Stock levels stay consistent across both stores so you can sell on either platform without overselling.
Sell on Both, Switch When Ready
Run both stores in parallel with Nventory keeping inventory synced. Test Shopify's checkout, verify product pages, and train staff. Cut over to Shopify when you're confident — on your timeline.
Frequently Asked Questions
Shopify supports up to 100 variants per product with three option axes. Products exceeding this limit are restructured using Shopify's combined listings or split into separate products with Nventory maintaining the relationship through metafields and tags.
Gift card migration is outside Nventory's scope. You would need to export active gift card balances from BigCommerce and manually recreate equivalent gift cards on Shopify. Nventory focuses on product catalog and inventory data transfer.
Yes. During the parallel-run period, both stores are fully operational with synced inventory levels. Many merchants keep BigCommerce active for a few weeks after the Shopify launch as a safety net before fully decommissioning.
BigCommerce includes features like customer groups, price lists, and faceted search that require apps on Shopify. Nventory's migration report lists every BigCommerce feature you use and recommends the equivalent Shopify app or native feature.
Initial product catalog sync from BigCommerce to Shopify typically completes within 2-12 hours depending on the number of products and images. Nventory keeps both stores live with synced inventory throughout the migration, so there is no downtime — you continue selling on BigCommerce until Shopify is tested and your domain is switched.
Nventory transfers products, variants, images, pricing, custom fields, and inventory levels. Customer accounts, order history, gift card balances, product reviews, BigCommerce-native B2B configurations, and faceted search settings don't transfer — these need to be rebuilt using Shopify apps or native features.
First, verify category mappings in Nventory's sync log — products assigned to BigCommerce categories that failed to map to Shopify collections will appear as uncategorized or may be skipped. Also check for products exceeding Shopify's 100-variant or 3-option limit, as these are flagged for restructuring. Finally, confirm that all product images transferred successfully, since images hosted on external URLs outside BigCommerce's CDN may fail to download.
Move Your Products to Shopify
Use Nventory's reliable product sync to move your BigCommerce catalog to Shopify. Run both stores with synced inventory until you're ready to switch.
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