A: Customer io integration is not yet implemented on the standalone widgets. You can use it in project widgets, but this may not work well in Webflow.
An alternative solution could be using a webhook integration with a solution like Zapier, that way you could integrate customer io with standalone widgets that work great on Webflow.

Supported integrations on standalone widgets are:
Custom Webhook, Google Sheets, Airtable, Hubspot, ConvertKit, Mailchimp, SendGrid, and Slack.

Thanks!