You can create Our To Do app lets you create quick To Dos in Celoxis for yourself or create action items for other users. You need to initiate a Workflow of type "To Do". For details, click here.
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A To Do has 2 states: Planned and Completed.
Once a To Do is created, it is in 'Planned' state
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. Once the task/to-do is complete, the person assigned to it can do the 'Mark Complete' transition.