Custom Cart to BigCommerce Migration - Step-by-Step Guide & Expert Services

Seamlessly Migrate Your Custom Cart Store to BigCommerce

The decision to replatform your e-commerce store is a significant one, often driven by the need for enhanced features, better scalability, or improved user experience. If you’re currently running a custom-built e-commerce solution, often referred to as a "Custom Cart" store, and are considering a move to a robust, feature-rich platform like BigCommerce, this guide is for you. While Custom Cart solutions offer flexibility, they often come with maintenance complexities, security concerns, and limited growth potential.

BigCommerce provides a powerful, scalable, and secure environment designed for growing businesses. This article will walk you through the entire process of migrating your valuable store data from a Custom Cart (which we'll facilitate via CSV file export, as Custom Cart is not a standard platform) to BigCommerce, ensuring a smooth transition with minimal downtime and maximum data integrity.

Prerequisites for a Successful Migration

Before initiating your store transfer, a little preparation goes a long way in ensuring a seamless experience. Here’s what you need to get ready:

• For Your Custom Cart (Source) Store:
  Since "Custom Cart" is not a standardized platform with direct API integration, the migration process will rely on CSV (Comma Separated Values) files. This means you will need to export all your vital store data into CSV format. Ensure you export the following entities:
  • Products: Include SKUs, product names, descriptions, pricing, inventory levels, images, product variants, and attributes.
  • Categories: Hierarchical structure and associated products.
  • Customers: Customer data including names, email addresses, billing/shipping information, and (optionally) encrypted passwords.
  • Orders: Order IDs, customer details, purchased items, order statuses, and transaction details.
  • Other Entities: Manufacturers, reviews, coupons, CMS pages, and blog posts, if applicable.

  It's crucial to clean your data during this export phase. Remove any irrelevant or duplicate entries to ensure higher data quality on your new BigCommerce store. For more details on preparing your source, refer to our guide on preparing your source store for migration.

• For Your BigCommerce (Target) Store:
  • A New BigCommerce Store: Set up a fresh BigCommerce account. You do not need to populate it with products or customers, as these will be migrated.
  • API Credentials: BigCommerce migrations are performed via API. You'll need to generate specific API credentials within your BigCommerce admin panel. This includes:
    • Client ID (Username)
    • Access Token (API Token)
    • API Path

    These credentials grant access to your BigCommerce store's data. Ensure you create a custom app with the necessary scopes (permissions) to allow for comprehensive data transfer. BigCommerce requires HTTPS for API connections. You can find detailed instructions on generating these in our guide to access credentials.

  • Review BigCommerce Limitations: Be aware of BigCommerce's API rate limits. While our migration tool handles this gracefully, it's a factor in overall migration speed.

  For further guidance on setting up your destination, check out our FAQ on preparing your target store.

Performing the Migration: A Step-by-Step Guide

Migrating your store data with a specialized migration service simplifies a complex process. Here’s a detailed walkthrough:

Step 1: Start Your Migration

Begin by navigating to the migration wizard. Here, you'll be presented with options to start your DIY migration, get assisted service, or estimate the cost.

Step 2: Source Store Setup (Custom Cart via CSV)

In this crucial step, you’ll configure your Custom Cart as the source. Since it's a custom solution, you will select "CSV File to Cart" from the dropdown menu. You will then upload your carefully prepared CSV files containing all your product, customer, order, and other relevant data. This is the foundation of your data transfer.

Step 3: Target Store Setup (BigCommerce)

Next, choose BigCommerce as your target platform from the list. You will need to provide your BigCommerce store URL and the API credentials you generated (Client ID, Access Token, and API Path). This establishes a secure connection between the migration service and your new BigCommerce store, allowing for data transfer.

Step 4: Select Entities for Migration

Here, you'll specify exactly what data you want to move. A comprehensive list of supported entities typically includes: products, product categories, manufacturers, product attributes, customers, orders, coupons, blog posts, and CMS pages. You can choose to migrate "All entities" or select them individually based on your needs.

Step 5: Configure Additional Migration Options

This step allows you to fine-tune your migration. Consider the following important options:

• Clear Target Store Data: Opting to clear current data on the target store ensures a fresh start, removing any sample data from BigCommerce.
• Create 301 SEO Redirects: Essential for preserving your SEO rankings and link equity. This option ensures that old URLs from your Custom Cart store automatically redirect to the new corresponding URLs on BigCommerce.
• Preserve IDs: Options like Preserve Product IDs, Preserve Order IDs, Preserve Category IDs, and Preserve Customer IDs maintain consistency with your previous data, which can be critical for integrations and internal reporting.
• Migrate Customer Passwords: If your Custom Cart exported encrypted passwords compatible with BigCommerce, this option can transfer them, allowing customers to log in without resetting.
• Create Variants from Attributes: Important for products with different options (e.g., size, color). This ensures your product variants are correctly set up in BigCommerce.

Step 6: Data Mapping

The data mapping stage is where you align fields from your Custom Cart (via CSV) to BigCommerce. This typically involves mapping customer groups (e.g., "Wholesale" in Custom Cart to a "Customer Group" in BigCommerce) and order statuses (e.g., "Pending" to "Awaiting Payment"). Proper mapping ensures data consistency and functionality post-migration.

Step 7: Run a Free Demo Migration (Optional but Highly Recommended)

Before committing to a full migration, run a free demo. This migrates a limited number of entities (e.g., 10-20 products, customers, orders) to your BigCommerce store. It allows you to review data transfer accuracy, check for any issues, and familiarize yourself with the process without any commitment.

Step 8: Full Data Migration

Once you’re satisfied with the demo results, proceed with the full migration. Review your selections and the final cost. You can also choose to add Migration Insurance, which offers additional remigrations for peace of mind. Initiate the full data transfer and monitor its progress. Depending on the volume of your data, this process can take some time.

Post-Migration Steps

After your data has been successfully moved to BigCommerce, a few crucial steps remain to ensure your new store is fully operational and optimized:

• Review and Verify Data: Meticulously check your BigCommerce store. Verify product SKUs, descriptions, images, pricing, customer accounts, order history, and all other migrated data. Ensure everything is in its correct place and displays as intended.
• Configure BigCommerce Settings: Set up essential store configurations unique to BigCommerce, such as shipping zones and rates, payment gateways, and tax settings.
• Design and Theme Customization: Customize your BigCommerce store's theme and design to align with your brand identity. Optimize for user experience across all devices.
• Test All Functionality: Conduct thorough testing of the entire customer journey, including product browsing, adding to cart, checkout process, customer login, search functionality, and contact forms.
• Update DNS and Redirects: Once you're confident in your BigCommerce store, update your domain's DNS settings to point to your new BigCommerce site. Double-check that all 301 redirects are functioning correctly to preserve SEO rankings and link equity from your old Custom Cart URLs.
• SEO Optimization: Update any meta descriptions, titles, and image alt tags if necessary. Submit your new sitemap to search engines.
• Go Live: Announce your new BigCommerce store to your customers!
• Consider Recent Data Migration: If new orders or customer data accumulate on your Custom Cart store during the migration period, consider utilizing a Recent Data Migration Service to transfer only the latest updates.

Migrating from a Custom Cart to BigCommerce is a significant undertaking, but with careful planning and the right tools, it can lead to a more scalable, secure, and feature-rich e-commerce presence. If you encounter any challenges or need expert assistance, feel free to contact us for support.