diff --git a/e2e-test/java/org/alfresco/rest/tags/AddTagSanityTests.java b/e2e-test/java/org/alfresco/rest/tags/AddTagSanityTests.java
index 5dbf45ed4..ae1dbc646 100644
--- a/e2e-test/java/org/alfresco/rest/tags/AddTagSanityTests.java
+++ b/e2e-test/java/org/alfresco/rest/tags/AddTagSanityTests.java
@@ -7,10 +7,7 @@ import org.alfresco.rest.requests.RestTagsApi;
 import org.alfresco.utility.constants.UserRole;
 import org.alfresco.utility.data.DataUser;
 import org.alfresco.utility.data.RandomData;
-import org.alfresco.utility.model.FileModel;
-import org.alfresco.utility.model.SiteModel;
-import org.alfresco.utility.model.TestGroup;
-import org.alfresco.utility.model.UserModel;
+import org.alfresco.utility.model.*;
 import org.alfresco.utility.report.Bug;
 import org.alfresco.utility.testrail.ExecutionType;
 import org.alfresco.utility.testrail.annotation.TestRail;
@@ -62,7 +59,7 @@ public class AddTagSanityTests extends RestTest
     {
         restClient.authenticateUser(adminUserModel);
         tagsAPI.addTag(document, tagValue)
-            .assertThat().field("tag").is("tagValue")
+            .assertThat().field("tag").is(tagValue)
             .and().field("id").isNotEmpty();
         tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.CREATED);
 
@@ -95,10 +92,8 @@ public class AddTagSanityTests extends RestTest
     public void contributorIsNotAbleToAddTagToAnotherContent() throws JsonToModelConversionException, Exception
     {
         restClient.authenticateUser(usersWithRoles.getOneUserWithRole(UserRole.SiteContributor));
-        tagsAPI.addTag(document, tagValue)
-            .assertThat().field("id").isNotEmpty()
-            .and().field("tag").is(tagValue);
-        tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.FORBIDDEN);
+        tagsAPI.addTag(document, tagValue);
+        tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.FORBIDDEN).assertLastError().containsSummary(ErrorModel.PERMISSION_WAS_DENIED);
     }
 
     @TestRail(section = { TestGroup.REST_API,
@@ -119,10 +114,8 @@ public class AddTagSanityTests extends RestTest
     public void consumerIsNotAbleToAddTag() throws JsonToModelConversionException, Exception
     {
         restClient.authenticateUser(usersWithRoles.getOneUserWithRole(UserRole.SiteConsumer));
-        tagsAPI.addTag(document, tagValue)
-            .assertThat().field("id").isNotEmpty()
-            .and().field("tag").is(tagValue);
-        tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.FORBIDDEN);
+        tagsAPI.addTag(document, tagValue);
+        tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.FORBIDDEN).assertLastError().containsSummary(ErrorModel.PERMISSION_WAS_DENIED);
     }
 
     @TestRail(section = { TestGroup.REST_API,
diff --git a/e2e-test/java/org/alfresco/rest/tags/AddTagsSanityTests.java b/e2e-test/java/org/alfresco/rest/tags/AddTagsSanityTests.java
index 5f8b58ea0..52d40f950 100644
--- a/e2e-test/java/org/alfresco/rest/tags/AddTagsSanityTests.java
+++ b/e2e-test/java/org/alfresco/rest/tags/AddTagsSanityTests.java
@@ -63,8 +63,8 @@ public class AddTagsSanityTests extends RestTest
     {
         restClient.authenticateUser(adminUserModel);
         tagsAPI.addTags(document, tag1, tag2)
-            .assertThat().entriesListContains("tag", tag1.toLowerCase())
-            .and().entriesListContains("tag", tag2.toLowerCase());
+            .assertThat().entriesListContains("tag", tag1)
+            .and().entriesListContains("tag", tag2);
                     
         tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.CREATED);
     }
@@ -75,8 +75,8 @@ public class AddTagsSanityTests extends RestTest
     {
         restClient.authenticateUser(usersWithRoles.getOneUserWithRole(UserRole.SiteManager));
         tagsAPI.addTags(document, tag1, tag2)
-            .assertThat().entriesListContains("tag", tag1.toLowerCase())
-            .and().entriesListContains("tag", tag2.toLowerCase());
+            .assertThat().entriesListContains("tag", tag1)
+            .and().entriesListContains("tag", tag2);
 
         tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.CREATED);
     }
@@ -87,8 +87,8 @@ public class AddTagsSanityTests extends RestTest
     {
         restClient.authenticateUser(usersWithRoles.getOneUserWithRole(UserRole.SiteCollaborator));
         tagsAPI.addTags(document, tag1, tag2)
-            .assertThat().entriesListContains("tag", tag1.toLowerCase())
-            .and().entriesListContains("tag", tag2.toLowerCase());
+            .assertThat().entriesListContains("tag", tag1)
+            .and().entriesListContains("tag", tag2);
 
         tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.CREATED);
     }
@@ -110,8 +110,8 @@ public class AddTagsSanityTests extends RestTest
         restClient.authenticateUser(userModel);
         contributorDoc = dataContent.usingSite(siteModel).usingUser(userModel).createContent(CMISUtil.DocumentType.TEXT_PLAIN);
         tagsAPI.addTags(contributorDoc, tag1, tag2)
-            .assertThat().entriesListContains("tag", tag1.toLowerCase())
-            .and().entriesListContains("tag", tag2.toLowerCase());
+            .assertThat().entriesListContains("tag", tag1)
+            .and().entriesListContains("tag", tag2);
         tagsAPI.usingRestWrapper().assertStatusCodeIs(HttpStatus.CREATED);
     }