The error message provided of “Klaviyo is no longer able to authenticate with Shopify” appears to indicate that your Klaviyo account may have run into an authenticate issue when connecting with Shopify. You can typically alleviating this issue by re-authenticating the Shopify integration with Klaviyo by following the below steps:
The error message provided of “Klaviyo is no longer able to authenticate with Shopify” appears to indicate that your Klaviyo account may have run into an authenticate issue when connecting with Shopify. You can typically alleviating this issue by re-authenticating the Shopify integration with Klaviyo by following the below steps: