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When you build your CommCare application, you can define the screen that will direct users after they submit a form instead of returning to the home screen. This feature is called End of Form Navigation, and it offers four options for users to choose from, depending on the application configuration: Home Screen, First Menu, Previous Screen, and Link to another form or menu.

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In the context of the form link conditional expression, form content is not available, so something like /data/some_question=’yes’ wouldn’t work. The expression below is an example of a expression that could be accepted if the property link_form is saved to the case. This expression gets the case from the case database (casedb), based on the ID stored in the user session, and verifies whether the property link_form is equal to ‘Yes’. If the expression returns 'true', the target form will be presented to the user, otherwise Commcare will move to the next condition, if applicable, or fallback to one of the default options.

Navigation fallback - select where the user should navigate to if that form is not available (for example, if the form is hidden for that case, if the form is hidden for that user, or if the the data needed for the form to open has not been provided). For example, let's say there's a registration form that links to a follow-up form right after it. But only supervisor can do follow-up. If there is a display condition that hides the follow-up form form the normal user and the normal user finishes a registration form, CommCare can’t follow through with the end of form navigation, so it sill fall back on any menu or page you specified in the Navigation Fallback setting. If a supervisor finishes a registration, the form is accessible and end of form navigation happens.

Note: The Case ID is not always referenced in the session as case_id, this varies depending on the form and module configurations. 

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