Support Multiple Separate Customer Tickets per Conversation

Currently, only one Customer ticket can be linked per conversation in Featurebase.

This limitation makes it difficult to handle cases where a customer has multiple distinct issues or topics that each require a dedicated Customer ticket.

It would be highly valuable to allow multiple separate Customer tickets to be linked to a single conversation to better track and manage each issue independently without needing to start new conversations or rely solely on Tracker tickets for related issues.