Migration resources

Migration strategy

Learn how to migrate from v1/v2 legacy APIs to Klaviyo's new APIs.

Audit your Klaviyo API usage

Learn how to audit your API endpoint usage, so you can migrate to Klaviyo's newest APIs.

Comparison chart: v1/v2 to new endpoints

Learn about the differences between the v1/v2 legacy APIs and our new APIs.

Best practices for migrating from v1/v2 to new APIs

Learn best practices for migrating to our new APIs with solutions for common use cases.

2023-07-15 Relationships migration

Migrate to the standardized Relationships object released in the 2023-07-15 revision.

Migrate track, identify, and subscribe to our new APIs

Learn about major changes and what corresponding calls to use.

Migration FAQ: v1/v2 API retirement

Find answers to common migration questions.

Hire an agency

Get help from a Certified Klaviyo Agency to migrate your integration.