final LocalDate activationDate = command.localDateValueOfParameterNamed(GroupingTypesApiConstants.activationDateParamName);
validateOfficeOpeningDateisAfterGroupOrCenterOpeningDate(groupOffice, groupForUpdate.getGroupLevel(), activationDate);
final Map<String, Object> actualChanges = groupForUpdate.update(command);
if (actualChanges.containsKey(GroupingTypesApiConstants.staffIdParamName)) {
final Long newValue = command.longValueOfParameterNamed(GroupingTypesApiConstants.staffIdParamName);
Staff newStaff = null;