By default, Yahoo! Messenger chat history is deleted when the session ends. However, you can configure the messaging software to keep tracks of the chat logs:
- Sign in under Messenger
- Go to "Messenger> Preferences> Archives"
- Check "Yes, save all my messages"
- To view the chat history, click on the "View Archive"
- Finally click "OK"
This document, titled « Yahoo Messenger-Save the chat history », is available under the Creative Commons
license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM