A. 1. Check App Settings: Go to DingTalk settings and ensure that message saving options are enabled. 2. Update the App: Make sure you are using the latest version of DingTalk, as updates may fix bugs related to message saving. 3. Restart the App: Close DingTalk completely and reopen it to see if that resolves the issue.

B. 4. Use Alternative Methods: If saving messages is not working, consider taking screenshots of important messages as a temporary workaround.