diff --git a/dmp-backend/data/src/main/java/eu/eudat/data/entities/Grant.java b/dmp-backend/data/src/main/java/eu/eudat/data/entities/Grant.java
index 9809f0953..fd5c77164 100644
--- a/dmp-backend/data/src/main/java/eu/eudat/data/entities/Grant.java
+++ b/dmp-backend/data/src/main/java/eu/eudat/data/entities/Grant.java
@@ -106,11 +106,11 @@ public class Grant implements DataEntity<Grant, UUID> {
 	@Column(name = "\"Definition\"", columnDefinition = "xml", nullable = true)
 	private String definition;
 
-	@Column(name = "\"StartDate\"", nullable = false)
+	@Column(name = "\"StartDate\"", nullable = true)
 	@Convert(converter = DateToUTCConverter.class)
 	private Date startdate = null;
 
-	@Column(name = "\"EndDate\"", nullable = false)
+	@Column(name = "\"EndDate\"", nullable = true)
 	@Convert(converter = DateToUTCConverter.class)
 	private Date enddate = null;
 
diff --git a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DataManagementPlanManager.java b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DataManagementPlanManager.java
index 563bb10ce..40f395864 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DataManagementPlanManager.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DataManagementPlanManager.java
@@ -151,8 +151,11 @@ public class DataManagementPlanManager {
                 items = null;
             }
         }
+
         if (items == null) {
             items = apiContext.getOperationsContext().getDatabaseRepository().getDmpDao().getWithCriteria(dataManagementPlanTableRequest.getCriteria());
+        }
+
             List<Integer> roles = new LinkedList<>();
             if (!dataManagementPlanTableRequest.getCriteria().isOnlyPublic()) {
                 if (dataManagementPlanTableRequest.getCriteria().getRole() != null)
@@ -161,8 +164,11 @@ public class DataManagementPlanManager {
             } else {
                 authItems = items;
             }
+        if (items == null) {
             totalData = authItems.count();
             items = PaginationManager.applyPaging(authItems, dataManagementPlanTableRequest);
+        } else {
+            items = authItems;
         }
 
 
@@ -534,6 +540,10 @@ public class DataManagementPlanManager {
         if (dataManagementPlan.getAssociatedUsers().size() == 0)
             assignUser(newDmp, user);
 
+        UUID dmpId = newDmp.getId();
+        Set<UserDMP> users = new HashSet<>(databaseRepository.getUserDmpDao().asQueryable().where((builder, root) -> builder.equal(root.get("dmp").get("id"), dmpId)).toList());
+        newDmp.setUsers(users);
+
         this.updateIndex(newDmp);
 
         if (setNotification) {
@@ -625,13 +635,16 @@ public class DataManagementPlanManager {
             assignGrandUserIfInternal(newDmp, user);
             assignFunderUserIfInternal(newDmp, user);
             assignProjectUserIfInternal(newDmp, user);
+            if (newDmp.getGrant().getStartdate() == null) {
+                newDmp.getGrant().setStartdate(new Date());
+            }
+            if (newDmp.getGrant().getEnddate() == null) {
+                newDmp.getGrant().setEnddate(Date.from(Instant.now().plus(365, ChronoUnit.DAYS)));
+            }
             databaseRepository.getGrantDao().createOrUpdate(newDmp.getGrant());
             DMP tempDmp = databaseRepository.getDmpDao().createOrUpdate(newDmp);
             newDmp.setId(tempDmp.getId());
 
-            // Assign creator.
-            assignUser(newDmp, user);
-
             copyDatasets(newDmp, databaseRepository.getDatasetDao());
 
            databaseRepository
@@ -797,6 +810,12 @@ public class DataManagementPlanManager {
                 else {
                     grant.setType(Grant.GrantType.EXTERNAL.getValue());
                     grant.setCreationUser(null);
+                    if (grant.getStartdate() == null) {
+                        grant.setStartdate(new Date());
+                    }
+                    if (grant.getEnddate() == null) {
+                        grant.setEnddate(Date.from(Instant.now().plus(365, ChronoUnit.DAYS)));
+                    }
                     grantDao.createOrUpdate(grant);
                 }
             }
@@ -1749,7 +1768,16 @@ public class DataManagementPlanManager {
         userDMP.setDmp(dmp);
         userDMP.setUser(userInfo);
         userDMP.setRole(role.getValue());
-        databaseRepository.getUserDmpDao().createOrUpdate(userDMP);
+        userDMP = databaseRepository.getUserDmpDao().createOrUpdate(userDMP);
+        logger.debug("UserDMP Id: " + userDMP.getId());
+    }
+
+    private boolean userExists(UserDMP userDMP, UserInfo userInfo, UserDMP.UserDMPRoles role) {
+        UserDMP tempUser = userDMP;
+        if (userDMP.getUser() == null) {
+            tempUser = databaseRepository.getUserDmpDao().find(userDMP.getId());
+        }
+        return tempUser.getUser().getId().equals(userInfo.getId()) && tempUser.getRole().equals(role.getValue());
     }
 
     private void clearUsers(DMP dmp) {
@@ -2147,7 +2175,9 @@ public class DataManagementPlanManager {
                         jsonFos.flush();
                     }
                     fileSystemResource = new FileSystemResource(tempJsonFile);
-                    addFileMapRequest = new HttpEntity<>(fileSystemResource, null);
+                    HttpHeaders jsonHeaders = new HttpHeaders();
+                    jsonHeaders.add(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_OCTET_STREAM_VALUE);
+                    addFileMapRequest = new HttpEntity<>(fileSystemResource, jsonHeaders);
                     String jsonFileName = jsonFile.getHeaders().get("Content-Disposition").get(0).substring(jsonFile.getHeaders().get("Content-Disposition").get(0).lastIndexOf('=')  + 1);
                     addFileUrl = links.get("bucket") + "/" + jsonFileName + "?access_token=" + zenodoToken;
                     restTemplate.put(addFileUrl, addFileMapRequest);
diff --git a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java
index 9005e631e..23743dd9b 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java
@@ -1095,7 +1095,7 @@ public class DatasetManager {
         if (!tagNodes.isEmpty()) {
             tagNodes.forEach(node -> {
                 JsonNode value = node.get("value");
-                String stringValue = value.asText().replaceAll("=", ":");
+                String stringValue = value.toString().replaceAll("=", ":");
                 JSONArray values = new JSONArray(stringValue);
                 if (values != null) {
                     values.iterator().forEachRemaining(element -> {
diff --git a/dmp-backend/web/src/main/java/eu/eudat/models/data/dmp/DataManagementPlanNewVersionModel.java b/dmp-backend/web/src/main/java/eu/eudat/models/data/dmp/DataManagementPlanNewVersionModel.java
index 46c193154..eae784aeb 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/models/data/dmp/DataManagementPlanNewVersionModel.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/models/data/dmp/DataManagementPlanNewVersionModel.java
@@ -7,7 +7,10 @@ import eu.eudat.models.data.funder.FunderDMPEditorModel;
 import eu.eudat.models.data.grant.GrantDMPEditorModel;
 import eu.eudat.models.data.project.ProjectDMPEditorModel;
 import eu.eudat.models.data.userinfo.UserInfo;
+import eu.eudat.models.data.userinfo.UserListingModel;
 import net.minidev.json.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.*;
 import java.util.stream.Collectors;
@@ -16,6 +19,8 @@ import java.util.stream.Collectors;
  * Created by ikalyvas on 2/5/2018.
  */
 public class DataManagementPlanNewVersionModel implements DataModel<DMP, DataManagementPlanNewVersionModel> {
+    private static final Logger logger = LoggerFactory.getLogger(DataManagementPlanNewVersionModel.class);
+
     private UUID id;
     private String label;
     private UUID groupId;
@@ -26,7 +31,7 @@ public class DataManagementPlanNewVersionModel implements DataModel<DMP, DataMan
     private eu.eudat.models.data.grant.GrantDMPEditorModel grant;
     private List<Organisation> organisations;
     private List<Researcher> researchers;
-    private List<UserDMP> associatedUsers;
+    private List<UserListingModel> associatedUsers;
     private eu.eudat.models.data.userinfo.UserInfo creator;
     private Date created;
     private List<Dataset> datasets;
@@ -104,10 +109,10 @@ public class DataManagementPlanNewVersionModel implements DataModel<DMP, DataMan
         this.researchers = researchers;
     }
 
-    public List<UserDMP> getAssociatedUsers() {
+    public List<UserListingModel> getAssociatedUsers() {
         return associatedUsers;
     }
-    public void setAssociatedUsers(List<UserDMP> associatedUsers) {
+    public void setAssociatedUsers(List<UserListingModel> associatedUsers) {
         this.associatedUsers = associatedUsers;
     }
 
@@ -163,7 +168,7 @@ public class DataManagementPlanNewVersionModel implements DataModel<DMP, DataMan
     public DMP toDataModel() throws Exception {
         DMP entity = new DMP();
         entity.setId(this.id);
-        entity.setUsers(new HashSet<>(new ArrayList<>(this.associatedUsers)));
+       // entity.setUsers(new HashSet<>(new ArrayList<>(this.associatedUsers)));
         entity.setDescription(this.description);
         entity.setStatus((short) this.status);
         entity.setGroupId(this.groupId == null ? UUID.randomUUID() : this.groupId);
@@ -227,7 +232,7 @@ public class DataManagementPlanNewVersionModel implements DataModel<DMP, DataMan
                 funder.setModified(new Date());
 
                 entity.getGrant().setFunder(funder);
-            } else if (this.funder.getExistFunder() != null && this.funder.getLabel() == null){
+            } else if (this.funder.getExistFunder() != null && this.funder.getLabel() == null) {
                 entity.getGrant().setFunder(this.funder.getExistFunder().toDataModel());
                 entity.getGrant().getFunder().setType(Funder.FunderType.EXTERNAL.getValue());
             }