Source: - Internal Error: The last service date [04/14/2010] cannot be before the Enrollment date [06/09/2010]. at jMultiTier.jMultiTier.jClientSrvDetail.set_lastServiceDate(DateTime Value) at jMultiTier.jMultiTier.jClientSrvDetail.resetLastServiceDate() at jMultiTier.jMultiTier.jClientSrvDetail.updateFirstAndLastServiceDatesIfWarranted(jService srv) at jMultiTier.jMultiTier.jClientSrvDetail.AddNew(jService newService) at jMultiTier.jMultiTier.jClientSrvDetail.AddNew(jService newService) at Client.frmClientInfo.cmdServiceSave_Click(Object sender, EventArgs e) An error occurred while updating the service list.