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Setting a Campaign Item to Time Tracking true on creation will set Linear to False, as per the Workflow Rule 'Set_LinearDistribution'. Once time tracking is set to true, all related timesheet activities will be rolled up to the relevant Revenue Schedules and used for invoicing.
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The created Timesheet Activity needs to be linked to a Campaign Item and Timesheet (See setup below on automated Timesheet creation for more information on Timesheets). You can enter the Duration duration and Date date of the activity (this is crucial to know where and how much to invoice), additionally you can add a description of the logged activity.
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The entered activities will automatically be summed up in the relevant Revenue Schedule or Revenue Schedule Daily, based on the Day date in the Timesheet activities. These values will then be used for invoicing.
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Add the relevant fields and related lists to the Page Layouts and Media Configuration Tabs
If desiredrequired; automate the creation of Timesheets