try {
            	List<PersonExternalReferenceInfo> externalRefs = personServiceInstance.getPersonExternalReference(mmInfo.getUnivNumber(),null);

            	for (PersonExternalReferenceInfo item : externalRefs) {
//            		vss.code.REFERENCETYPE.1.ID Number

					if (item.getExternalReferenceTypeKey().contains(typeKey_ID)) {
            			mmInfo.setIdNumber(item.getExternalReference());
            			break;
					}

				}
//                mmInfo.setIdNumber(personServiceInstance.getPersonBiographic(
//                        mmInfo.getUnivNumber(),null).getSaIdentificationNumber());
            } catch (ac.za.nwu.generated.services.person.DoesNotExistException |
                    InvalidParameterException |
                    ac.za.nwu.generated.services.person.OperationFailedException |
                    ac.za.nwu.generated.services.person.PermissionDeniedException |
                    ac.za.nwu.generated.services.person.MissingParameterException e) {
                e.printStackTrace();
            }