diff --git a/dmp-backend/core/src/main/java/eu/eudat/query/DescriptionQuery.java b/dmp-backend/core/src/main/java/eu/eudat/query/DescriptionQuery.java
index cf51b9e7f..bcc4e193c 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/query/DescriptionQuery.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/query/DescriptionQuery.java
@@ -257,11 +257,11 @@ public class DescriptionQuery extends QueryBase<DescriptionEntity> {
             predicates.add(inClause);
         }
         if (this.dmpDescriptionTemplateQuery != null) {
-            QueryContext<DmpDescriptionTemplateEntity, UUID> subQuery = this.applySubQuery(this.dmpDescriptionTemplateQuery, queryContext, UUID.class, DmpDescriptionTemplate._id);
+            QueryContext<DmpDescriptionTemplateEntity, UUID> subQuery = this.applySubQuery(this.dmpDescriptionTemplateQuery, queryContext, UUID.class, dmpDescriptionTemplateEntityRoot -> dmpDescriptionTemplateEntityRoot.get(DmpDescriptionTemplateEntity._id));
             predicates.add(queryContext.CriteriaBuilder.in(queryContext.Root.get(DescriptionEntity._dmpDescriptionTemplateId)).value(subQuery.Query));
         }
         if (this.dmpQuery != null) {
-            QueryContext<DmpEntity, UUID> subQuery = this.applySubQuery(this.dmpQuery, queryContext, UUID.class, Dmp._id);
+            QueryContext<DmpEntity, UUID> subQuery = this.applySubQuery(this.dmpQuery, queryContext, UUID.class, dmpEntityRoot -> dmpEntityRoot.get(DmpEntity._id));
             predicates.add(queryContext.CriteriaBuilder.in(queryContext.Root.get(DescriptionEntity._dmpId)).value(subQuery.Query));
         }
         if (!predicates.isEmpty()) {
diff --git a/dmp-backend/core/src/main/java/eu/eudat/query/DmpQuery.java b/dmp-backend/core/src/main/java/eu/eudat/query/DmpQuery.java
index 1460ad9b2..c093035fb 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/query/DmpQuery.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/query/DmpQuery.java
@@ -288,8 +288,8 @@ public class DmpQuery extends QueryBase<DmpEntity> {
         }
 
         if (this.dmpDescriptionTemplateQuery != null) {
-            QueryContext<DmpDescriptionTemplateEntity, UUID> subQuery = this.applySubQuery(this.dmpDescriptionTemplateQuery, queryContext, UUID.class, DmpDescriptionTemplate._dmp);
-            predicates.add(queryContext.CriteriaBuilder.in(queryContext.Root.get(DescriptionEntity._dmpDescriptionTemplateId)).value(subQuery.Query));
+            QueryContext<DmpDescriptionTemplateEntity, UUID> subQuery = this.applySubQuery(this.dmpDescriptionTemplateQuery, queryContext, UUID.class, dmpDescriptionTemplateEntityRoot -> dmpDescriptionTemplateEntityRoot.get(DmpDescriptionTemplateEntity._dmpId));
+            predicates.add(queryContext.CriteriaBuilder.in(queryContext.Root.get(DmpEntity._id)).value(subQuery.Query));
         }
         if (!predicates.isEmpty()) {
             Predicate[] predicatesArray = predicates.toArray(new Predicate[0]);
diff --git a/dmp-backend/core/src/main/java/eu/eudat/query/UserQuery.java b/dmp-backend/core/src/main/java/eu/eudat/query/UserQuery.java
index ed637a443..415e8dc79 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/query/UserQuery.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/query/UserQuery.java
@@ -196,7 +196,7 @@ public class UserQuery extends QueryBase<UserEntity> {
             predicates.add(queryContext.CriteriaBuilder.in(queryContext.Root.get(UserEntity._id)).value(userContactInfoSubquery));
         }
         if (this.userRoleQuery != null) {
-            QueryContext<UserRoleEntity, UUID> subQuery = this.applySubQuery(this.userRoleQuery, queryContext, UUID.class, UserRole._user);
+            QueryContext<UserRoleEntity, UUID> subQuery = this.applySubQuery(this.userRoleQuery, queryContext, UUID.class, userRoleEntityRoot -> userRoleEntityRoot.get(UserRoleEntity._userId));
             predicates.add(queryContext.CriteriaBuilder.in(queryContext.Root.get(UserEntity._id)).value(subQuery.Query));
         }
 
diff --git a/dmp-backend/core/src/main/java/eu/eudat/query/lookup/DmpLookup.java b/dmp-backend/core/src/main/java/eu/eudat/query/lookup/DmpLookup.java
index 9a45c71c3..ba6e4ed6b 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/query/lookup/DmpLookup.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/query/lookup/DmpLookup.java
@@ -21,6 +21,7 @@ public class DmpLookup extends Lookup {
     private List<UUID> ids;
 
     private List<UUID> excludedIds;
+    private List<UUID> groupIds;
 
     private List<IsActive> isActive;
     private List<DmpVersionStatus> versionStatuses;
@@ -104,10 +105,19 @@ public class DmpLookup extends Lookup {
         this.dmpDescriptionTemplateSubQuery = dmpDescriptionTemplateSubQuery;
     }
 
+    public List<UUID> getGroupIds() {
+        return groupIds;
+    }
+
+    public void setGroupIds(List<UUID> groupIds) {
+        this.groupIds = groupIds;
+    }
+
     public DmpQuery enrich(QueryFactory queryFactory) {
         DmpQuery query = queryFactory.query(DmpQuery.class);
         if (this.like != null) query.like(this.like);
         if (this.ids != null) query.ids(this.ids);
+        if (this.groupIds != null) query.groupIds(this.groupIds);
         if (this.excludedIds != null) query.excludedIds(this.excludedIds);
         if (this.accessTypes != null) query.accessTypes(this.accessTypes);
         if (this.isActive != null) query.isActive(this.isActive);
@@ -125,6 +135,7 @@ public class DmpLookup extends Lookup {
         DmpElasticQuery query = queryFactory.query(DmpElasticQuery.class);
         if (this.like != null) query.like(this.like);
         if (this.ids != null) query.ids(this.ids);
+        if (this.groupIds != null) query.groupIds(this.groupIds);
         if (this.excludedIds != null) query.excludedIds(this.excludedIds);
         if (this.accessTypes != null) query.accessTypes(this.accessTypes);
         if (this.statuses != null) query.statuses(this.statuses);
@@ -141,6 +152,7 @@ public class DmpLookup extends Lookup {
         InnerObjectDmpElasticQuery query = queryFactory.query(InnerObjectDmpElasticQuery.class);
         if (this.like != null) query.like(this.like);
         if (this.ids != null) query.ids(this.ids);
+        if (this.groupIds != null) query.groupIds(this.groupIds);
         if (this.excludedIds != null) query.excludedIds(this.excludedIds);
         if (this.accessTypes != null) query.accessTypes(this.accessTypes);
         if (this.statuses != null) query.statuses(this.statuses);
diff --git a/dmp-backend/core/src/main/java/eu/eudat/service/description/DescriptionServiceImpl.java b/dmp-backend/core/src/main/java/eu/eudat/service/description/DescriptionServiceImpl.java
index 7d01d14ea..d72208a37 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/service/description/DescriptionServiceImpl.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/service/description/DescriptionServiceImpl.java
@@ -166,10 +166,10 @@ public class DescriptionServiceImpl implements DescriptionService {
         if (data == null) throw new MyNotFoundException(messageSource.getMessage("General_ItemNotFound", new Object[]{model.getId(), Description.class.getSimpleName()}, LocaleContextHolder.getLocale()));
         if (!this.conventionService.hashValue(data.getUpdatedAt()).equals(model.getHash())) throw new MyValidationException(this.errors.getHashConflict().getCode(), this.errors.getHashConflict().getMessage());
         if (!data.getStatus().equals(model.getStatus())){
-            if (data.getStatus() == DescriptionStatus.Finalized){
+            if (data.getStatus().equals(DescriptionStatus.Finalized)){
                 DmpEntity dmpEntity = this.entityManager.find(DmpEntity.class, data.getDmpId());
                 if (dmpEntity == null) throw new MyNotFoundException(messageSource.getMessage("General_ItemNotFound", new Object[]{data.getDmpId(), DmpEntity.class.getSimpleName()}, LocaleContextHolder.getLocale()));
-                if(dmpEntity.getStatus() .equals(DmpStatus.Finalized)) throw new MyValidationException(this.errors.getDmpIsFinalized().getCode(), this.errors.getDmpIsFinalized().getMessage());
+                if(!dmpEntity.getStatus().equals(DmpStatus.Draft)) throw new MyValidationException(this.errors.getDmpIsFinalized().getCode(), this.errors.getDmpIsFinalized().getMessage());
             }
 
             data.setStatus(model.getStatus());
diff --git a/dmp-backend/pom.xml b/dmp-backend/pom.xml
index ec9675e3a..16aba4f65 100644
--- a/dmp-backend/pom.xml
+++ b/dmp-backend/pom.xml
@@ -315,7 +315,7 @@
         <dependency>
             <groupId>gr.cite</groupId>
             <artifactId>data-tools</artifactId>
-            <version>2.1.1</version>
+            <version>2.1.2</version>
         </dependency>
         <dependency>
             <groupId>gr.cite</groupId>
diff --git a/dmp-backend/web/src/main/java/eu/eudat/EuDatApplication.java b/dmp-backend/web/src/main/java/eu/eudat/EuDatApplication.java
index 2c90fed48..9c352e6ee 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/EuDatApplication.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/EuDatApplication.java
@@ -3,16 +3,20 @@ package eu.eudat;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.databind.json.JsonMapper;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import eu.eudat.data.BaseEntity;
+import org.jetbrains.annotations.NotNull;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
 import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Primary;
+import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.scheduling.annotation.EnableAsync;
 
 @SpringBootApplication(scanBasePackages = {
@@ -31,9 +35,22 @@ public class EuDatApplication extends SpringBootServletInitializer {
     @Primary
     public ObjectMapper primaryObjectMapper() {
         return JsonMapper.builder().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+                .configure(SerializationFeature.WRITE_DATE_KEYS_AS_TIMESTAMPS, true)
                 .serializationInclusion(JsonInclude.Include.NON_NULL)
                 .addModule(new JavaTimeModule()).build();
     }
+//    @Bean
+//    public Jackson2ObjectMapperBuilder objectMapperBuilder() {
+//        return new Jackson2ObjectMapperBuilder() {
+//    
+//            @Override
+//            public void configure(ObjectMapper objectMapper) {
+//                objectMapper.registerModule(new JavaTimeModule());
+//                super.configure(objectMapper);
+//            }
+//        };
+//    
+//    }
 
     @Override
     protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {