diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClient.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClient.java
index f91ad44..6bee5a9 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClient.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClient.java
@@ -1,5 +1,6 @@
 package org.onap.so.client.namingservice;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -17,6 +18,7 @@
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Component;
+import org.springframework.web.client.HttpStatusCodeException;
 import org.springframework.web.client.RestTemplate;
 
 
@@ -34,21 +36,31 @@
 	@Autowired
 	private NamingClientResponseValidator namingClientResponseValidator;
 	
-	public String postNameGenRequest(NameGenRequest request) throws BadResponseException {
+	public String postNameGenRequest(NameGenRequest request) throws BadResponseException, IOException {
 		String targetUrl = env.getProperty(ENDPOINT);
 		HttpHeaders headers = setHeaders(env.getProperty(AUTH)); 
 		msoLogger.info("Sending postNameGenRequest to url: " + targetUrl);
 		HttpEntity<NameGenRequest> requestEntity = new HttpEntity<>(request, headers);
-		ResponseEntity<NameGenResponse> response = restTemplate.postForEntity(targetUrl, requestEntity, NameGenResponse.class);
+		ResponseEntity<NameGenResponse> response;
+		try{
+			 response = restTemplate.postForEntity(targetUrl, requestEntity, NameGenResponse.class);
+		}catch(HttpStatusCodeException e){
+			throw new BadResponseException(namingClientResponseValidator.formatError(e));
+		}
 		return namingClientResponseValidator.validateNameGenResponse(response);
 	}
 
-	public String deleteNameGenRequest(NameGenDeleteRequest request) throws BadResponseException {
+	public String deleteNameGenRequest(NameGenDeleteRequest request) throws BadResponseException, IOException {
 		String targetUrl = env.getProperty(ENDPOINT);
 		HttpHeaders headers = setHeaders(env.getProperty(AUTH)); 
 		msoLogger.info("Sending deleteNameGenRequest to url: " + targetUrl);
 		HttpEntity<NameGenDeleteRequest> requestEntity = new HttpEntity<>(request, headers);
-		ResponseEntity<NameGenDeleteResponse> response = restTemplate.exchange(targetUrl, HttpMethod.DELETE, requestEntity, NameGenDeleteResponse.class);
+		ResponseEntity<NameGenDeleteResponse> response;
+		try{
+			response = restTemplate.exchange(targetUrl, HttpMethod.DELETE, requestEntity, NameGenDeleteResponse.class);
+		}catch(HttpStatusCodeException e){
+			throw new BadResponseException(namingClientResponseValidator.formatError(e));
+		}
 		return namingClientResponseValidator.validateNameGenDeleteResponse(response);
 	}
 
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClientResponseValidator.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClientResponseValidator.java
index ab06395..e790fa4 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClientResponseValidator.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingClientResponseValidator.java
@@ -1,5 +1,6 @@
 package org.onap.so.client.namingservice;
 
+import java.io.IOException;
 import java.util.List;
 
 import org.apache.http.HttpStatus;
@@ -12,6 +13,9 @@
 import org.onap.so.logger.MsoLogger;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Component;
+import org.springframework.web.client.HttpStatusCodeException;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
 
 @Component
 public class NamingClientResponseValidator {
@@ -99,5 +103,20 @@
 	private boolean isHttpCodeSuccess(int code) {
         return code >= HttpStatus.SC_OK && code < HttpStatus.SC_MULTIPLE_CHOICES || code == 0;
     }
+	
+	protected String formatError(HttpStatusCodeException e) throws IOException {
+		ObjectMapper mapper = new ObjectMapper();
+		NameGenResponse errorResponse = mapper.readValue(e.getResponseBodyAsString(), NameGenResponse.class);
+		NameGenResponseError error = errorResponse.getError();
+		
+		String errorMessageString = null;
+		if (error != null) {
+			errorMessageString = error.getMessage();
+		}
+		String errorMessage = String.format(NAMING_SERVICE_ERROR, errorMessageString);
+		msoLogger.error(MessageEnum.RA_GENERAL_EXCEPTION, errorMessage, "BPMN", MsoLogger.getServiceName(),
+				MsoLogger.ErrorCode.DataError, errorMessage);
+		return errorMessage;
+	}
 
 }
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingRequestObjectBuilder.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingRequestObjectBuilder.java
index c3f216e..82bad8d 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingRequestObjectBuilder.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/namingservice/NamingRequestObjectBuilder.java
@@ -13,11 +13,11 @@
 	
 	public Element elementMapper(String instanceGroupId, String policyInstanceName, String namingType, String nfNamingCode, String instanceGroupName){
 		Element element = new Element();
-		element.setExternalKey(instanceGroupId);
-		element.setPolicyInstanceName(policyInstanceName);
-		element.setNamingType(namingType);
-		element.setResourceName(instanceGroupName);
-		element.setNamingIngredientsZeroOrMore(nfNamingCode);
+		element.put("external-key", instanceGroupId);
+		element.put("policy-instance-name", policyInstanceName);
+		element.put("naming-type", namingType);
+		element.put("resource-name", instanceGroupName);
+		element.put("nf-naming-code", nfNamingCode);
 		return element;
 	}
 	public Deleteelement deleteElementMapper(String instanceGroupId){
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/orchestration/NamingServiceResources.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/orchestration/NamingServiceResources.java
index 8b443a1..d0bf6da 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/orchestration/NamingServiceResources.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/client/orchestration/NamingServiceResources.java
@@ -20,6 +20,7 @@
 
 package org.onap.so.client.orchestration;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -44,14 +45,14 @@
 	@Autowired
 	private NamingRequestObjectBuilder namingRequestObjectBuilder;	
 	
-	public String generateInstanceGroupName(InstanceGroup instanceGroup, String policyInstanceName, String nfNamingCode) throws BadResponseException {
+	public String generateInstanceGroupName(InstanceGroup instanceGroup, String policyInstanceName, String nfNamingCode) throws BadResponseException, IOException {
 		Element element = namingRequestObjectBuilder.elementMapper(instanceGroup.getId(), policyInstanceName, NAMING_TYPE, nfNamingCode, instanceGroup.getInstanceGroupName());
 		List<Element> elements = new ArrayList<Element>();
 		elements.add(element);		
 		return(namingClient.postNameGenRequest(namingRequestObjectBuilder.nameGenRequestMapper(elements)));		
 	}
 	
-	public String deleteInstanceGroupName(InstanceGroup instanceGroup) throws BadResponseException {		
+	public String deleteInstanceGroupName(InstanceGroup instanceGroup) throws BadResponseException, IOException {		
 		Deleteelement deleteElement = namingRequestObjectBuilder.deleteElementMapper(instanceGroup.getId());
 		List<Deleteelement> deleteElements = new ArrayList<Deleteelement>();
 		deleteElements.add(deleteElement);		
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/client/namingservice/NamingClientTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/client/namingservice/NamingClientTest.java
new file mode 100644
index 0000000..c1769e3
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/client/namingservice/NamingClientTest.java
@@ -0,0 +1,99 @@
+package org.onap.so.client.namingservice;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.delete;
+import static com.github.tomakehurst.wiremock.client.WireMock.post;
+import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlPathEqualTo;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.http.HttpStatus;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.onap.namingservice.model.Deleteelement;
+import org.onap.namingservice.model.Element;
+import org.onap.namingservice.model.NameGenDeleteRequest;
+import org.onap.namingservice.model.NameGenRequest;
+import org.onap.so.BaseIntegrationTest;
+import org.onap.so.client.exception.BadResponseException;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+
+public class NamingClientTest extends BaseIntegrationTest{
+	@Autowired
+	NamingClient client;
+	@Autowired
+	NamingRequestObjectBuilder requestBuilder;
+	@Rule
+	public ExpectedException thrown = ExpectedException.none();
+	
+	@Test
+	public void assignNameGenRequest() throws BadResponseException, IOException{
+		stubFor(post(urlPathEqualTo("/web/service/v1/genNetworkElementName"))
+				.willReturn(aResponse().withHeader("Content-Type", "application/json")
+				.withBodyFile("NamingClient/AssignResponse.json")
+				.withStatus(HttpStatus.SC_ACCEPTED)));
+		
+		NameGenRequest request = assignSetup();
+		String response = client.postNameGenRequest(request);
+		assertTrue(response.equals("$vnf-name"));
+	}
+	@Test
+	public void assignNameGenRequestError() throws BadResponseException, IOException{
+		stubFor(post(urlPathEqualTo("/web/service/v1/genNetworkElementName"))
+				.willReturn(aResponse().withHeader("Content-Type", "application/json")
+				.withBodyFile("NamingClient/ErrorResponse.json")
+				.withStatus(HttpStatus.SC_INTERNAL_SERVER_ERROR)));
+		
+		thrown.expect(BadResponseException.class);
+		thrown.expectMessage("Error from Naming Service: External Key is required and must be unique");
+		NameGenRequest request = assignSetup();
+		client.postNameGenRequest(request);
+	}
+	@Test
+	public void unassignNameGenRequest() throws BadResponseException, IOException{
+		stubFor(delete(urlPathEqualTo("/web/service/v1/genNetworkElementName"))
+				.willReturn(aResponse().withHeader("Content-Type", "application/json")
+				.withBodyFile("NamingClient/UnassignResponse.json")
+				.withStatus(HttpStatus.SC_ACCEPTED)));
+		
+		String response = client.deleteNameGenRequest(unassignSetup());
+		assertTrue(response.equals(""));
+	}
+	@Test
+	public void unassignNameGenRequestError() throws BadResponseException, IOException{
+		stubFor(delete(urlPathEqualTo("/web/service/v1/genNetworkElementName"))
+				.willReturn(aResponse().withHeader("Content-Type", "application/json")
+				.withBodyFile("NamingClient/ErrorResponse.json")
+				.withStatus(HttpStatus.SC_INTERNAL_SERVER_ERROR)));
+		
+		thrown.expect(BadResponseException.class);
+		thrown.expectMessage("Error from Naming Service: External Key is required and must be unique");
+		client.deleteNameGenRequest(unassignSetup());
+	}
+	
+	public NameGenRequest assignSetup() throws JsonProcessingException{
+		NameGenRequest request = new NameGenRequest();
+		List<Element> elements = new ArrayList<>();
+		Element testElement = new Element();
+		testElement = requestBuilder.elementMapper("SomeUniqueValue", "SDNC_Policy.Config_MS_1806SRIOV_VNATJson.4.xml", "VNF", "nfNamingCode", "vnf_name");
+		elements.add(testElement);
+		request = requestBuilder.nameGenRequestMapper(elements);
+		return request;
+	}
+	public NameGenDeleteRequest unassignSetup() throws JsonProcessingException{
+		NameGenDeleteRequest request = new NameGenDeleteRequest();
+		List<Deleteelement> deleteElements = new ArrayList<>();
+		Deleteelement testElement = new Deleteelement();
+		testElement = requestBuilder.deleteElementMapper("instanceGroupId");
+		deleteElements.add(testElement);
+		request = requestBuilder.nameGenDeleteRequestMapper(deleteElements);
+		return request;
+	}
+}
\ No newline at end of file
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/client/namingservice/NamingRequestObjectBuilderTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/client/namingservice/NamingRequestObjectBuilderTest.java
index 0a2dc1e..27839d6 100644
--- a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/client/namingservice/NamingRequestObjectBuilderTest.java
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/client/namingservice/NamingRequestObjectBuilderTest.java
@@ -26,11 +26,11 @@
 	public void elementMapperTest(){
 		// Expected element
 		Element expected = new Element();
-		expected.setExternalKey(instanceGroupId);
-		expected.setPolicyInstanceName(policyInstanceName);
-		expected.setNamingType(namingType);
-		expected.setResourceName(instanceGroupName);
-		expected.setNamingIngredientsZeroOrMore(nfNamingCode);
+		expected.put("external-key", instanceGroupId);
+		expected.put("policy-instance-name", policyInstanceName);
+		expected.put("naming-type", namingType);
+		expected.put("resource-name", instanceGroupName);
+		expected.put("nf-naming-code", nfNamingCode);
 		
 		// Actual element
 		Element actual = mapper.elementMapper(instanceGroupId, policyInstanceName, namingType, nfNamingCode, instanceGroupName);
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/AssignResponse.json b/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/AssignResponse.json
new file mode 100644
index 0000000..b065c21
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/AssignResponse.json
@@ -0,0 +1,14 @@
+{
+  "elements": [
+    {
+      "external-key": "$vnf-id",
+      "resource-name": "instance-group-name",
+      "resource-value": "$vnf-name"
+    },
+    {
+      "external-key": "$vnf-id",
+      "resource-name": "vm-name",
+      "resource-value": "$vm-name"
+    }
+  ]
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/ErrorResponse.json b/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/ErrorResponse.json
new file mode 100644
index 0000000..8bac7cd
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/ErrorResponse.json
@@ -0,0 +1,6 @@
+{
+    "error": {
+        "errorId": "NELGEN-0003",
+        "message": "External Key is required and must be unique"
+    }
+}
\ No newline at end of file
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/UnassignResponse.json b/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/UnassignResponse.json
new file mode 100644
index 0000000..b065c21
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/resources/__files/NamingClient/UnassignResponse.json
@@ -0,0 +1,14 @@
+{
+  "elements": [
+    {
+      "external-key": "$vnf-id",
+      "resource-name": "instance-group-name",
+      "resource-value": "$vnf-name"
+    },
+    {
+      "external-key": "$vnf-id",
+      "resource-name": "vm-name",
+      "resource-value": "$vm-name"
+    }
+  ]
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/application-test.yaml b/bpmn/so-bpmn-tasks/src/test/resources/application-test.yaml
index 3d45cad..fed2aa6 100644
--- a/bpmn/so-bpmn-tasks/src/test/resources/application-test.yaml
+++ b/bpmn/so-bpmn-tasks/src/test/resources/application-test.yaml
@@ -43,7 +43,7 @@
 mso:
   naming:
     endpoint: http://localhost:${wiremock.server.port}/web/service/v1/genNetworkElementName
-    auth: Basic YnBlbDptc28tZGItMTUwNyE=
+    auth: Basic YnBlbDptc28tZGItMTUwNyE= 
   adapters:
     requestDb:
       auth: Basic YnBlbDptc28tZGItMTUwNyE=