Add SMS Support in Klaviyo Connector (Campaign & Message Channel fields)#1320

Summary

Currently, the Windsor Klaviyo connector only returns Email values in the fields campaign_channel and message_channel. However, in Klaviyo’s native UI, users can filter and view data by both Email and SMS channels.

Flows Support: Windsor already supports flows via dedicated fields (flow_id, flow_name, etc.), so there is no need to add a new flow_channel field. Users can query flow-related data directly through the existing flow fields.

Missing SMS Data: The main gap lies in SMS. Even though Klaviyo exposes SMS performance at the campaign/message level, Windsor’s connector does not currently map or return this data.

Impact for Users: This prevents Windsor users from fully replicating Klaviyo dashboards (e.g., Channel filter showing “All, Email, SMS” or Message Type filter showing “Campaigns, Flows”) inside Looker Studio or other BI tools.

Request: Extend the Klaviyo connector to integrate the SMS channel from Klaviyo’s API into the campaign_channel and message_channel fields, so users can filter by Email and SMS natively in Windsor queries.