As of January 1, 2023 stores on Starter and Basic plans (globally), will no longer be able to request access to the Carrier Service API. The option to request access by transitioning to annual billing or by paying an additional monthly fee for these plan types will be removed.
Stores on Advanced and Shopify Plus plans will continue to have access to Carrier Service API. Stores on Shopify plans can continue to request access by contacting Shopify Support. Stores on Starter or Basic plans that were previously granted access are not impacted by this change.
Learn more about CarrierService access requirements on Shopify.dev.