Case 1: An error has occurred while attempting to save your subscriber information.
Case 2: The list provided does not exist.
Case 3: Information was not provided for a mandatory field.
Case 4: Invalid information was provided.
Case 5: Information provided is not unique.
Case 6: An error has occurred while attempting to save your subscriber information.
Case 7: An error has occurred while attempting to save your subscriber information.
Case 8: Subscriber already exists.
Case 9: An error has occurred while attempting to save your subscriber information.
Case 10: An error has occurred while attempting to save your subscriber information.
Case 12: The subscriber you are attempting to insert is on the master unsubscribe list or the global unsubscribe list.