> For the complete documentation index, see [llms.txt](https://ontact.gitbook.io/ontact/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ontact.gitbook.io/ontact/english/biz-to-earn-b2e/the-challenge-and-mission.md). # The Challenge and Mission Challenges and weekly/monthly missions encourage users to learn and utilize **ttogttog**’s various features. By providing various rewards such as $SDT and Farming Tree NFTs when completing tasks and missions, users are encouraged to participate while stimulating interest. ### Challenge Users can earn rewards by learning the basic functions of **ttogttog**, such as creating a digital business cards, posting resume/work experiences, and registering a profile photo. ### Mission Missions and rewards are provided weekly/monthly, such as exchanging digital business cards and posting introduction content on digital business cards, which encourage users to visit and use **ttogttog** regularly.