Any Worker who is assigned to a launched Effort on a given date will have access to that Effort. If multiple Efforts have been launched, then the Worker can choose which Effort to start. 

Note: Workers must have a data or WiFi connection in order to switch between Efforts. 

Here's how Multi Effort Login works on the Organizer mobile app on both iOS (left) and Android(right):

          

To change Efforts, click on the Menu and then click "Change Effort."

         

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