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A Status trigger automatically triggers a form to be set to a specific status when a field is populated.
Status level: select the status level.
Field: select the field that will trigger the form to go the status level selected.
Allow trigger to higher status level: this would allow the trigger to set the form to a status that has already been passed.
Trigger condition value: select a condition if required (if the field is a date field typically 'anything' is the value).