BigCommerce + ConvertKit

BigCommerce to ConvertKit Integration - Built by Harvard-educated Experts

Tired of copying data between BigCommerce and ConvertKit by hand? Our Harvard-educated automation team builds a custom integration that syncs your data in real time - set up in 2 weeks.

8+ hours/week

Saved weekly

12+

Years experience

98%

Client retention

One-way

Sync direction

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Why Connect BigCommerce to ConvertKit?

Customers in BigCommerce and subscribers in ConvertKit drift out of sync, leading to outdated details on invoices, emails, and reports

Manually copying data between BigCommerce and ConvertKit wastes hours every week that could be spent on revenue-generating work

Online orders in BigCommerce and in-store inventory in ConvertKit are never in sync, frustrating customers

Production order data in BigCommerce and inventory levels in ConvertKit are reconciled manually, risking stock-outs

Reporting across BigCommerce and ConvertKit requires painful manual exports and spreadsheet merges

No single source of truth when contacts live in two disconnected tools, so staff second-guess which system has the correct information

ConvertKit adds complexity: reporting is basic compared to Mailchimp and Klaviyo, with limited revenue attribution and A/B testing on lower plans

New team members take longer to onboard because they must learn manual workarounds to keep BigCommerce and ConvertKit aligned

How We Help

With 12+ helping mid-market Australian businesses, we have built dozens of integrations between e-commerce and marketing platforms. Connecting BigCommerce to ConvertKit is a proven workflow we deploy in 2 weeks. On the technical side, BigCommerce uses a REST + Webhook API with OAuth authentication, which our team handles as part of the build.

Unified Customers Across Both Platforms

Customers in BigCommerce and subscribers in ConvertKit stay perfectly aligned. Every update, whether it is a new phone number, email change, or company association, is reflected in both systems within seconds.

Custom-Built for Your Workflow

Unlike generic connectors, we build integrations tailored to how your business actually uses BigCommerce and ConvertKit. Custom field mappings, business rules, and error handling included.

Unlock ConvertKit Value

ConvertKit stands out because subscriber-centric model with tag-based organisation means each person exists once regardless of how many lists they belong to, simplifying management. Integrating it with BigCommerce means your team gets this benefit with complete, accurate data flowing in automatically.

Eliminate Manual Data Entry

Stop copying contacts between BigCommerce and ConvertKit by hand. Our integration syncs data automatically, saving your team 8+ hours/week.

BigCommerce to ConvertKit Use Cases

Automated error handling and retry for BigCommerce/ConvertKit sync

When a sync between BigCommerce and ConvertKit fails due to a rate limit, network issue, or validation error, the integration retries automatically with exponential backoff. Your team is alerted only when intervention is genuinely needed.

Sync BigCommerce customers to ConvertKit subscribers

When a customer is created or updated in BigCommerce, the corresponding subscriber record in ConvertKit is automatically created or updated. Contact details, company associations, and custom fields are all mapped.

Data Mapping

How data flows between BigCommerce and ConvertKit

BigCommerce	→	ConvertKit	Notes
BigCommerce Customers -> id	→	ConvertKit Subscribers -> id	Unique identifier stored as cross-reference for record linking
BigCommerce Customers -> email	→	ConvertKit Subscribers -> email_address	Primary matching key for identifying existing records across both platforms
BigCommerce Customers -> first_name	→	ConvertKit Subscribers -> first_name	Contact identity fields synchronised to maintain consistency
BigCommerce Categories	→	ConvertKit Tags	Tags and categorisation labels merged and deduplicated between systems.
BigCommerce Record IDs	→	ConvertKit External References	Cross-reference identifiers stored on both records for bidirectional lookups and deduplication
BigCommerce Owner/Assignee	→	ConvertKit Owner/Assignee	Record ownership mapped between platforms using email address as the matching key
BigCommerce Timestamps	→	ConvertKit Audit Log	Created and modified timestamps preserved for sync conflict resolution and compliance
BigCommerce Products	→	ConvertKit Custom Fields	Products data from BigCommerce stored in ConvertKit custom fields for reference
BigCommerce Brands	→	ConvertKit Custom Fields	Brands data from BigCommerce stored in ConvertKit custom fields for reference
BigCommerce Orders	→	ConvertKit Custom Fields	Orders data from BigCommerce stored in ConvertKit custom fields for reference

BigCommerce + ConvertKit Integration FAQ

Yes. BigCommerce supports webhooks for instant event notifications, and ConvertKit also provides webhook support for bidirectional triggers. Changes in BigCommerce are reflected in ConvertKit within seconds. For high-volume scenarios, we implement queuing to handle peak loads without data loss.

Yes, every integration includes 3 months of post-launch support. We monitor sync health, troubleshoot issues, and make adjustments as your workflow evolves. Ongoing maintenance plans are available for businesses that want continuous optimisation.

Our integrations include retry logic and error queuing. If ConvertKit is temporarily down, changes are queued and replayed once the system recovers. You will receive alerts for any sync failures that need attention. No data is lost during outages.

We follow a structured testing process: unit tests for individual data mappings, end-to-end tests with sample data, and a staging period where we run the integration in parallel with your existing process. You review and approve the results before we switch to live. This approach minimises risk and ensures accuracy.

Absolutely. We design integrations with growth in mind, whether you are syncing 100 records or 100,000. Our architecture handles rate limiting (BigCommerce's API allows 150 requests per 30 seconds on standard plans), pagination, and queuing to ensure reliable performance at any scale.

Most BigCommerce to ConvertKit integrations are completed within 2 weeks. We start with a discovery session to understand your specific workflow, then build and test the integration. Complex setups with custom business logic may take up to 4-8 weeks.

Absolutely. Custom field mapping is a core part of every integration we build. Whether it is custom properties in BigCommerce or user-defined fields in ConvertKit, we map them precisely to your requirements. We can also transform data formats, apply business rules, and handle conditional mappings.