diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/BulkUpload.java b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/BulkUpload.java
index 7d0d86b..49cea00 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/BulkUpload.java
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/BulkUpload.java
@@ -58,6 +58,9 @@ public class BulkUpload {
                 AriadneCatalogEntry ace = ((AriadneCatalogEntry) next);
                 if (isCollection) {
                     ace.setResourceType("collection");
+                    if (ace.getSpatial()==null) {
+                        ace.setSpatial(Arrays.asList(new Spatial()));
+                    }
                 }
                 else {
                     ace.setResourceType("dataset");
@@ -72,35 +75,40 @@ public class BulkUpload {
                     ace.setSpatial(Arrays.asList(esSpatial));
                 }
 
-                String uniqueIsPartOf = ace.getUniqueIsPartOf();
-                if (uniqueIsPartOf!=null) {
-                    ace.setIsPartOf(Arrays.asList(uniqueIsPartOf));
+                if (!isCollection) {
+                    String uniqueIsPartOf = ace.getUniqueIsPartOf();
+                    if (uniqueIsPartOf != null) {
+                        ace.setIsPartOf(Arrays.asList(uniqueIsPartOf));
+                    }
+                    if (ace.getContributor() != null) {
+                        ace.getContributor().clear();
+                        ace.setContributor(ace.getCreator());
+                    }
+                    Distribution distribution = new Distribution();
+                    AgentInfo distrPublisher = new AgentInfo();
+                    distrPublisher.setEmail("");
+                    distrPublisher.setName("");
+                    distrPublisher.setType("");
+                    distribution.setPublisher(Arrays.asList(distrPublisher));
+                    ace.setDistribution(Arrays.asList(distribution));
+                    ItemMetadataStructure ims = new ItemMetadataStructure();
+                    ace.setHasItemMetadataStructure(Arrays.asList(ims));
+                    MetadataRecord mr = new MetadataRecord();
+                    Dex dex = new Dex();
+                    mr.setConformsTo(Arrays.asList(dex));
+                    ace.setHasMetadataRecord(Arrays.asList(mr));
+                    if (!isCollection) {
+                        ace.setKeyword(Arrays.asList(new String("")));
+                    }
+                    AgentInfo sr = new AgentInfo();
+                    ace.setScientificResponsible(Arrays.asList(sr));
+                    AgentInfo tr = new AgentInfo();
+                    ace.setTechnicalResponsible(Arrays.asList(tr));
                 }
-                if (ace.getContributor()!=null) {
-                    ace.getContributor().clear();
-                    ace.setContributor(ace.getCreator());
-                }
-                Distribution distribution = new Distribution();
-                AgentInfo distrPublisher = new AgentInfo();
-                distrPublisher.setEmail("");
-                distrPublisher.setName("");
-                distrPublisher.setType("");
-                distribution.setPublisher(Arrays.asList(distrPublisher));
-                ace.setDistribution(Arrays.asList(distribution));
-                ItemMetadataStructure ims = new ItemMetadataStructure();
-                ace.setHasItemMetadataStructure(Arrays.asList(ims));
-                MetadataRecord mr = new MetadataRecord();
-                Dex dex = new Dex();
-                mr.setConformsTo(Arrays.asList(dex));
-                ace.setHasMetadataRecord(Arrays.asList(mr));
-                ace.setKeyword(Arrays.asList(new String("")));
-                AgentInfo sr = new AgentInfo();
-                ace.setScientificResponsible(Arrays.asList(sr));
-                AgentInfo tr = new AgentInfo();
-                ace.setTechnicalResponsible(Arrays.asList(tr));
-
                 AgentInfo testPublisher = new AgentInfo();
                 testPublisher.setName("TEST");
+                testPublisher.setPhone(null);
+                testPublisher.setEmail(null);
                 ace.getPublisher().add(testPublisher);
                 String[] splits = ace.getIdentifier().split("/");
 
@@ -113,8 +121,17 @@ public class BulkUpload {
                     String aatSubjectId = aatSourceSplit[aatSourceSplit.length-1];
                     ace.getAatSubjects().forEach(s -> s.setId(aatSubjectId));
                 }
-                request.add(new IndexRequest(elasticSearchIndexName).id(splits[splits.length-1])
+
+                String idES;
+                if (isCollection) {
+                    idES = "10000".concat(ace.getOriginalId());
+                }
+                else {
+                    idES = splits[splits.length-1];
+                }
+                request.add(new IndexRequest(elasticSearchIndexName).id(idES)
                         .source(ace.toJson(),XContentType.JSON));
+
                 BulkResponse bulkResponse = client.bulk(request, RequestOptions.DEFAULT);
                 log.info("Indexing to ES completed with status: "+bulkResponse.status());
                 if (bulkResponse.hasFailures()) {
diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/AriadneCatalogEntry.java b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/AriadneCatalogEntry.java
index c817097..665e8fc 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/AriadneCatalogEntry.java
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/AriadneCatalogEntry.java
@@ -373,4 +373,12 @@ public class AriadneCatalogEntry {
     public  String toJson(){
         return new Gson().toJson(this);
     }
+
+    public void setAccrualPeriodicity(String accrualPeriodicity) {
+        this.accrualPeriodicity = accrualPeriodicity;
+    }
+
+    public void setAudience(String audience) {
+        this.audience = audience;
+    }
 }
\ No newline at end of file
diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/reader/utils/ESUtils.java b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/reader/utils/ESUtils.java
index fb8b0df..b9c0ef4 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/reader/utils/ESUtils.java
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/reader/utils/ESUtils.java
@@ -2,13 +2,25 @@ package eu.dnetlib.ariadneplus.reader.utils;
 
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeFormatterBuilder;
+import java.time.temporal.ChronoField;
 
 public class ESUtils {
     private static DateTimeFormatter originalRecordDateFormatter = DateTimeFormatter.ofPattern("dd MMM yyyy");
     private static DateTimeFormatter elasticSearchDateFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+    private static DateTimeFormatter yearOnlyDateFormatter = new DateTimeFormatterBuilder()
+            .appendPattern("yyyy")
+            .parseDefaulting(ChronoField.MONTH_OF_YEAR, 1)
+            .parseDefaulting(ChronoField.DAY_OF_MONTH, 1)
+            .toFormatter();
 
     public static String getESFormatDate(String originalDate) {
-        LocalDate parsedDate = LocalDate.parse(originalDate, originalRecordDateFormatter);
-        return parsedDate.format(elasticSearchDateFormatter);
+        try {
+            LocalDate parsedDate = LocalDate.parse(originalDate, originalRecordDateFormatter);
+            return parsedDate.format(elasticSearchDateFormatter);
+        } catch (Exception e) {
+            LocalDate parsedDate = LocalDate.parse(originalDate, yearOnlyDateFormatter);
+            return parsedDate.format(yearOnlyDateFormatter);
+        }
     }
 }
diff --git a/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java b/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java
index e7bbda0..8ab23e1 100644
--- a/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java
+++ b/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java
@@ -62,7 +62,7 @@ public class GraphDbReaderAndESIndexTest {
         final ClassPathResource queryTemplateResource = new ClassPathResource("eu/dnetlib/ariadneplus/sparql/read_record_data_template.sparql");
         String queryTemplate = IOUtils.toString(queryTemplateResource.getInputStream(), StandardCharsets.UTF_8.name());
     	runSPQRLQuery.executeMultipleQueryGraph(queryTemplate, recordIds, datasource, collectionId, false);
-
+//        runSPQRLQuery.executeMultipleQueryGraph(queryTemplate, recordIds, datasource, collectionId, true);
     }
 
     @Test