You can complete a Job in the App and the Web Portal.
To Complete the Job in the Web Portal, Jobs > Scheduler > Click on the Job that you would like to mark complete and select Complete on the Drop drown Box.
NOTE - completing a job in the scheduler on the Web Portal will not trigger job type communication to send.
Or through the Job itself in the Web Portal, Jobs > Edit > change the job status to complete > save.
In the App, Jobs > Select the Job that you would like to mark complete, Select "Complete" at the top or bottom of the screen, all forms attached to the job must be completed when completing the job on the app.