In this release, we have implemented two new permissions. Now you can set the quota on the overall number of conversations users can have. This includes both sent and received conversations. If a user exceeds this limit, they will not be able to start a conversation and other users will not be able to send a conversation to them.
Another permission defines the minimum number of posts users should have to read their conversations. If users have fewer posts, they can still see the list of conversations, get notifications about new conversations and replies, but they will not be able to see the conversation itself.
We also modified the product to show detailed information about the error (e.g. how many posts they need to start a conversation) instead of just showing a general error message.