Programmatically Set Custom Conversation Attributes via Messenger Widget

There is currently no reliable way to programmatically set custom conversation attributes (CvDAs) via the Featurebase Messenger widget.

Even when attributes are correctly defined (case-sensitive keys, valid types), values passed at boot time do not appear in the Inbox conversation attributes.

Teams want to attach contextual, per-conversation metadata (e.g., current page URL, product area, flow context) at the moment a conversation is started.

Today, the only workaround is using user-level attributes, which is insufficient for session- or page-specific context.

Add support to programmatically set and persist conversation-level custom attributes via the Messenger widget (e.g., through boot or a dedicated API), with clear documentation and examples.

This would enable better routing, debugging, and contextual support workflows.