Help Your Members Stay on Topic
Where: This change applies to Lightning communities accessed through Lightning Experience and Salesforce Classic in Essentials, Enterprise, Performance, Unlimited, and Developer editions.
Who: Members with the Create and Set Up Communities and View Setup and Configuration permissions can configure component properties.
How: In Community Builder, open the property manager for the Ask or Contact Support & Ask button and select Block topic selection on questions in topics.
When users ask questions in a topic feed, they’re prevented from selecting a new topic in the Posting to field. Instead, that topic is read-only.