A form design intended for use in LiveCycle Workspace ES must contain a submit button or a button that references a submit button. When a form design contains one submit button, LiveCycle Workspace ES hides the submit button and enables the LiveCycle Workspace ES Complete button. When a form design contains no submit button, LiveCycle Workspace ES disables the Complete button, and users cannot submit the form. See How LiveCycle Workspace ES handles buttons in PDF forms for more information on how LiveCycle Workspace ES handles buttons in PDF forms.
In addition to the standard Submit button, LiveCycle Designer ES offers two objects to help you prepare a form design for LiveCycle Workspace ES; the Process Fields and the Form Bridge objects. Both objects are available in the Custom category of the Object Library palette.

Preparing a form for use in LiveCycle Workspace ES