How the messages in Battlefield Chat, Corps Chat and Group Chat are cleared?

Only parts of chat data can be kept in the server after the game is uninstalled and reinstalled. Up to 200 messages in Battlefield Chat and Corps Chat can be kept. In Group Chat, messages that were sent in the last 30 days can be kept.

1.When there are too many messages (> 4000) on the chat interface (all the messages you can see), the system would automatically clear the messages.

2.Regarding the messages (stored by the system) that can be kept in the server, no more than 200 messages of Battlefield Chat and Corps Chat would be kept and only the messages sent in the last 30 days in Group Chat would be kept.

3.If you teleport to another battlefield, the messages you send and receive in Battlefield Chat can be seen in that battlefield and will be cleared after you go back to your own battlefield.