diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java
index 2e4b219b5d..eec36bc0e0 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java
@@ -1,8 +1,8 @@
+
 package eu.dnetlib.dhp.oa.dedup;
 
 import java.util.*;
 
-import eu.dnetlib.dhp.oa.dedup.model.Identifier;
 import org.apache.spark.api.java.function.MapFunction;
 import org.apache.spark.api.java.function.MapGroupsFunction;
 import org.apache.spark.sql.Dataset;
@@ -15,6 +15,7 @@ import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.collect.Lists;
 
+import eu.dnetlib.dhp.oa.dedup.model.Identifier;
 import eu.dnetlib.dhp.schema.common.ModelSupport;
 import eu.dnetlib.dhp.schema.oaf.*;
 import scala.Tuple2;
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/IdGenerator.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/IdGenerator.java
index 7980d8e697..405a9abf10 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/IdGenerator.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/IdGenerator.java
@@ -6,25 +6,25 @@ import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.*;
 
-import eu.dnetlib.dhp.oa.dedup.model.Identifier;
-import eu.dnetlib.dhp.oa.dedup.model.PidType;
-import eu.dnetlib.dhp.utils.DHPUtils;
 import org.apache.commons.lang.StringUtils;
 
 import com.google.common.collect.Lists;
 
+import eu.dnetlib.dhp.oa.dedup.model.Identifier;
+import eu.dnetlib.dhp.oa.dedup.model.PidType;
 import eu.dnetlib.dhp.schema.common.EntityType;
 import eu.dnetlib.dhp.schema.common.ModelSupport;
 import eu.dnetlib.dhp.schema.oaf.Field;
 import eu.dnetlib.dhp.schema.oaf.OafEntity;
 import eu.dnetlib.dhp.schema.oaf.Result;
 import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+import eu.dnetlib.dhp.utils.DHPUtils;
 
 public class IdGenerator implements Serializable {
 
 	public static String CROSSREF_ID = "10|openaire____::081b82f96300b6a6e3d282bad31cb6e2";
 	public static String DATACITE_ID = "10|openaire____::9e3be59865b2c1c335d32dae2fe7b254";
-	public static String BASE_DATE	 = "2000-01-01";
+	public static String BASE_DATE = "2000-01-01";
 
 	// pick the best pid from the list (consider date and pidtype)
 	public static String generate(List<Identifier> pids, String defaultID) {
@@ -55,9 +55,9 @@ public class IdGenerator implements Serializable {
 			date = new Date();
 		}
 		return Lists
-				.newArrayList(
-						new Identifier(new StructuredProperty(), date, PidType.original, entity.getCollectedfrom(),
-								EntityType.fromClass(entity.getClass()), entity.getId()));
+			.newArrayList(
+				new Identifier(new StructuredProperty(), date, PidType.original, entity.getCollectedfrom(),
+					EntityType.fromClass(entity.getClass()), entity.getId()));
 	}
 
 	// pick the best pid from the entity. Returns a list (length 1) to save time in the call
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareNewOrgs.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareNewOrgs.java
index ea6e6db826..9b91a545ed 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareNewOrgs.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareNewOrgs.java
@@ -5,8 +5,11 @@ import java.io.IOException;
 import java.util.Optional;
 import java.util.Properties;
 
-import eu.dnetlib.dhp.oa.dedup.model.OrgSimRel;
 import org.apache.commons.io.IOUtils;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
 import org.apache.spark.SparkConf;
 import org.apache.spark.api.java.function.FilterFunction;
 import org.apache.spark.api.java.function.MapFunction;
@@ -18,6 +21,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import eu.dnetlib.dhp.application.ArgumentApplicationParser;
+import eu.dnetlib.dhp.oa.dedup.model.OrgSimRel;
 import eu.dnetlib.dhp.schema.common.ModelSupport;
 import eu.dnetlib.dhp.schema.oaf.Organization;
 import eu.dnetlib.dhp.schema.oaf.Relation;
@@ -62,6 +66,10 @@ public class SparkPrepareNewOrgs extends AbstractSparkAction {
 			.map(Integer::valueOf)
 			.orElse(NUM_CONNECTIONS);
 
+		final String apiUrl = Optional
+			.ofNullable(parser.get("apiUrl"))
+			.orElse("");
+
 		final String dbUrl = parser.get("dbUrl");
 		final String dbTable = parser.get("dbTable");
 		final String dbUser = parser.get("dbUser");
@@ -72,6 +80,7 @@ public class SparkPrepareNewOrgs extends AbstractSparkAction {
 		log.info("actionSetId:   '{}'", actionSetId);
 		log.info("workingPath:   '{}'", workingPath);
 		log.info("numPartitions: '{}'", numConnections);
+		log.info("apiUrl:        '{}'", apiUrl);
 		log.info("dbUrl:         '{}'", dbUrl);
 		log.info("dbUser:        '{}'", dbUser);
 		log.info("table:         '{}'", dbTable);
@@ -89,9 +98,12 @@ public class SparkPrepareNewOrgs extends AbstractSparkAction {
 		newOrgs
 			.repartition(numConnections)
 			.write()
-			.mode(SaveMode.Overwrite)
+			.mode(SaveMode.Append)
 			.jdbc(dbUrl, dbTable, connectionProperties);
 
+		if (!apiUrl.isEmpty())
+			updateSimRels(apiUrl);
+
 	}
 
 	public static Dataset<OrgSimRel> createNewOrgs(
@@ -138,9 +150,21 @@ public class SparkPrepareNewOrgs extends AbstractSparkAction {
 					r._1()._2().getLegalshortname() != null ? r._1()._2().getLegalshortname().getValue() : "",
 					r._1()._2().getCountry() != null ? r._1()._2().getCountry().getClassid() : "",
 					r._1()._2().getWebsiteurl() != null ? r._1()._2().getWebsiteurl().getValue() : "",
-					r._1()._2().getCollectedfrom().get(0).getValue()),
+					r._1()._2().getCollectedfrom().get(0).getValue(), ""),
 				Encoders.bean(OrgSimRel.class));
 
 	}
 
+	private static String updateSimRels(final String apiUrl) throws IOException {
+
+		log.info("Updating simrels on the portal");
+
+		final HttpGet req = new HttpGet(apiUrl);
+		try (final CloseableHttpClient client = HttpClients.createDefault()) {
+			try (final CloseableHttpResponse response = client.execute(req)) {
+				return IOUtils.toString(response.getEntity().getContent());
+			}
+		}
+	}
+
 }
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareOrgRels.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareOrgRels.java
index 4a3ce80dfa..e9933c4e5e 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareOrgRels.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkPrepareOrgRels.java
@@ -1,18 +1,14 @@
-
 package eu.dnetlib.dhp.oa.dedup;
 
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Optional;
-import java.util.Properties;
-
+import com.google.common.collect.Lists;
+import eu.dnetlib.dhp.application.ArgumentApplicationParser;
 import eu.dnetlib.dhp.oa.dedup.model.OrgSimRel;
+import eu.dnetlib.dhp.schema.common.ModelSupport;
+import eu.dnetlib.dhp.schema.oaf.Organization;
+import eu.dnetlib.dhp.schema.oaf.Relation;
+import eu.dnetlib.dhp.utils.ISLookupClientFactory;
+import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
 import org.apache.commons.io.IOUtils;
-import org.apache.http.client.methods.CloseableHttpResponse;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.impl.client.CloseableHttpClient;
-import org.apache.http.impl.client.HttpClients;
 import org.apache.spark.SparkConf;
 import org.apache.spark.api.java.function.MapFunction;
 import org.apache.spark.sql.Dataset;
@@ -21,14 +17,11 @@ import org.apache.spark.sql.SaveMode;
 import org.apache.spark.sql.SparkSession;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-
-import eu.dnetlib.dhp.application.ArgumentApplicationParser;
-import eu.dnetlib.dhp.schema.common.ModelSupport;
-import eu.dnetlib.dhp.schema.oaf.Organization;
-import eu.dnetlib.dhp.schema.oaf.Relation;
-import eu.dnetlib.dhp.utils.ISLookupClientFactory;
-import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
 import scala.Tuple2;
+import scala.Tuple3;
+
+import java.io.IOException;
+import java.util.*;
 
 public class SparkPrepareOrgRels extends AbstractSparkAction {
 
@@ -67,10 +60,6 @@ public class SparkPrepareOrgRels extends AbstractSparkAction {
 			.map(Integer::valueOf)
 			.orElse(NUM_CONNECTIONS);
 
-		final String apiUrl = Optional
-			.ofNullable(parser.get("apiUrl"))
-			.orElse("");
-
 		final String dbUrl = parser.get("dbUrl");
 		final String dbTable = parser.get("dbTable");
 		final String dbUser = parser.get("dbUser");
@@ -81,7 +70,6 @@ public class SparkPrepareOrgRels extends AbstractSparkAction {
 		log.info("actionSetId:   '{}'", actionSetId);
 		log.info("workingPath:   '{}'", workingPath);
 		log.info("numPartitions: '{}'", numConnections);
-		log.info("apiUrl:        '{}'", apiUrl);
 		log.info("dbUrl:         '{}'", dbUrl);
 		log.info("dbUser:        '{}'", dbUser);
 		log.info("table:         '{}'", dbTable);
@@ -102,9 +90,6 @@ public class SparkPrepareOrgRels extends AbstractSparkAction {
 			.mode(SaveMode.Overwrite)
 			.jdbc(dbUrl, dbTable, connectionProperties);
 
-		if (!apiUrl.isEmpty())
-			updateSimRels(apiUrl);
-
 	}
 
 	public static Dataset<OrgSimRel> createRelations(
@@ -112,6 +97,105 @@ public class SparkPrepareOrgRels extends AbstractSparkAction {
 		final String mergeRelsPath,
 		final String entitiesPath) {
 
+		Dataset<Tuple2<String, Organization>> entities = spark
+			.read()
+			.textFile(entitiesPath)
+			.map(
+				(MapFunction<String, Tuple2<String, Organization>>) it -> {
+					Organization entity = OBJECT_MAPPER.readValue(it, Organization.class);
+					return new Tuple2<>(entity.getId(), entity);
+				},
+				Encoders.tuple(Encoders.STRING(), Encoders.kryo(Organization.class)));
+
+		Dataset<Tuple3<String, String, String>> relations = spark
+			.createDataset(
+				spark
+					.read()
+					.load(mergeRelsPath)
+					.as(Encoders.bean(Relation.class))
+					.where("relClass == 'merges'")
+					.toJavaRDD()
+					.mapToPair(r -> new Tuple2<>(r.getSource(), r.getTarget()))
+					.filter(t -> !t._2().contains("openorgsmesh"))
+					.groupByKey()
+					.map(g -> Lists.newArrayList(g._2()))
+					.filter(l -> l.size() > 1)
+					.flatMap(l -> {
+						String groupId = "group::" + UUID.randomUUID();
+						List<String> ids = sortIds(l);
+						List<Tuple3<String, String, String>> rels = new ArrayList<>();
+
+						for (String source : ids) {
+							if (source.contains("openorgs____") || ids.indexOf(source) == 0)
+								for (String target : ids) {
+									rels.add(new Tuple3<>(source, target, groupId));
+								}
+						}
+						return rels.iterator();
+					})
+					.rdd(),
+				Encoders.tuple(Encoders.STRING(), Encoders.STRING(), Encoders.STRING()));
+
+		Dataset<Tuple2<String, OrgSimRel>> relations2 = relations // <openorgs, corda>
+			.joinWith(entities, relations.col("_2").equalTo(entities.col("_1")), "inner")
+			.map(
+				(MapFunction<Tuple2<Tuple3<String, String, String>, Tuple2<String, Organization>>, OrgSimRel>) r -> new OrgSimRel(
+					r._1()._1(),
+					r._2()._2().getOriginalId().get(0),
+					r._2()._2().getLegalname() != null ? r._2()._2().getLegalname().getValue() : "",
+					r._2()._2().getLegalshortname() != null ? r._2()._2().getLegalshortname().getValue() : "",
+					r._2()._2().getCountry() != null ? r._2()._2().getCountry().getClassid() : "",
+					r._2()._2().getWebsiteurl() != null ? r._2()._2().getWebsiteurl().getValue() : "",
+					r._2()._2().getCollectedfrom().get(0).getValue(),
+					r._1()._3()),
+				Encoders.bean(OrgSimRel.class))
+			.map(
+				(MapFunction<OrgSimRel, Tuple2<String, OrgSimRel>>) o -> new Tuple2<>(o.getLocal_id(), o),
+				Encoders.tuple(Encoders.STRING(), Encoders.bean(OrgSimRel.class)));
+
+		return relations2
+			.joinWith(entities, relations2.col("_1").equalTo(entities.col("_1")), "inner")
+			.map(
+				(MapFunction<Tuple2<Tuple2<String, OrgSimRel>, Tuple2<String, Organization>>, OrgSimRel>) r -> {
+					OrgSimRel orgSimRel = r._1()._2();
+					orgSimRel.setLocal_id(r._2()._2().getOriginalId().get(0));
+					return orgSimRel;
+				},
+				Encoders.bean(OrgSimRel.class));
+
+	}
+
+	// select best ids from the list. Priority: 1) openorgs, 2)corda, 3)alphabetic
+	public static List<String> sortIds(List<String> ids) {
+
+		ids.sort((o1, o2) -> {
+
+			if (o1.contains("openorgs____") && o2.contains("openorgs____"))
+				return o1.compareTo(o2);
+			if (o1.contains("corda") && o2.contains("corda"))
+				return o1.compareTo(o2);
+
+			if (o1.contains("openorgs____"))
+				return -1;
+			if (o2.contains("openorgs____"))
+				return 1;
+
+			if (o1.contains("corda"))
+				return -1;
+			if (o2.contains("corda"))
+				return 1;
+
+			return o1.compareTo(o2);
+		});
+
+		return ids;
+	}
+
+	public static Dataset<OrgSimRel> createRelationsFromScratch(
+		final SparkSession spark,
+		final String mergeRelsPath,
+		final String entitiesPath) {
+
 		// <id, json_entity>
 		Dataset<Tuple2<String, Organization>> entities = spark
 			.read()
@@ -151,13 +235,14 @@ public class SparkPrepareOrgRels extends AbstractSparkAction {
 			.joinWith(entities, relations.col("_2").equalTo(entities.col("_1")), "inner")
 			.map(
 				(MapFunction<Tuple2<Tuple2<String, String>, Tuple2<String, Organization>>, OrgSimRel>) r -> new OrgSimRel(
-					r._1()._1(),
-					r._2()._2().getOriginalId().get(0),
-					r._2()._2().getLegalname() != null ? r._2()._2().getLegalname().getValue() : "",
-					r._2()._2().getLegalshortname() != null ? r._2()._2().getLegalshortname().getValue() : "",
-					r._2()._2().getCountry() != null ? r._2()._2().getCountry().getClassid() : "",
-					r._2()._2().getWebsiteurl() != null ? r._2()._2().getWebsiteurl().getValue() : "",
-					r._2()._2().getCollectedfrom().get(0).getValue()),
+							r._1()._1(),
+							r._2()._2().getOriginalId().get(0),
+							r._2()._2().getLegalname() != null ? r._2()._2().getLegalname().getValue() : "",
+							r._2()._2().getLegalshortname() != null ? r._2()._2().getLegalshortname().getValue() : "",
+							r._2()._2().getCountry() != null ? r._2()._2().getCountry().getClassid() : "",
+							r._2()._2().getWebsiteurl() != null ? r._2()._2().getWebsiteurl().getValue() : "",
+							r._2()._2().getCollectedfrom().get(0).getValue(),
+							"group::" + r._1()._1()),
 				Encoders.bean(OrgSimRel.class))
 			.map(
 				(MapFunction<OrgSimRel, Tuple2<String, OrgSimRel>>) o -> new Tuple2<>(o.getLocal_id(), o),
@@ -175,16 +260,4 @@ public class SparkPrepareOrgRels extends AbstractSparkAction {
 
 	}
 
-	private static String updateSimRels(final String apiUrl) throws IOException {
-
-		log.info("Updating simrels on the portal");
-
-		final HttpGet req = new HttpGet(apiUrl);
-		try (final CloseableHttpClient client = HttpClients.createDefault()) {
-			try (final CloseableHttpResponse response = client.execute(req)) {
-				return IOUtils.toString(response.getEntity().getContent());
-			}
-		}
-	}
-
 }
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/graph/ConnectedComponent.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/graph/ConnectedComponent.java
index 3d0d24d238..3f24adb939 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/graph/ConnectedComponent.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/graph/ConnectedComponent.java
@@ -6,13 +6,13 @@ import java.io.Serializable;
 import java.util.Set;
 import java.util.stream.Collectors;
 
-import eu.dnetlib.dhp.utils.DHPUtils;
 import org.apache.commons.lang.StringUtils;
 import org.codehaus.jackson.annotate.JsonIgnore;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 import eu.dnetlib.dhp.oa.dedup.DedupUtility;
+import eu.dnetlib.dhp.utils.DHPUtils;
 import eu.dnetlib.pace.util.PaceException;
 
 public class ConnectedComponent implements Serializable {
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/Identifier.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/Identifier.java
index 95fd21c648..f5b2f48c56 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/Identifier.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/Identifier.java
@@ -7,6 +7,7 @@ import java.util.List;
 import java.util.Set;
 import java.util.stream.Collectors;
 
+import com.google.common.collect.Sets;
 import eu.dnetlib.dhp.oa.dedup.IdGenerator;
 import eu.dnetlib.dhp.schema.common.EntityType;
 import eu.dnetlib.dhp.schema.oaf.KeyValue;
@@ -95,8 +96,13 @@ public class Identifier implements Serializable, Comparable<Identifier> {
 		// priority in comparisons: 1) pidtype, 2) collectedfrom (depending on the entity type) , 3) date 4)
 		// alphabetical order of the originalID
 
-		Set<String> lKeys = this.collectedFrom.stream().map(KeyValue::getKey).collect(Collectors.toSet());
-		Set<String> rKeys = i.getCollectedFrom().stream().map(KeyValue::getKey).collect(Collectors.toSet());
+		Set<String> lKeys = Sets.newHashSet();
+		if (this.collectedFrom != null)
+			lKeys = this.collectedFrom.stream().map(KeyValue::getKey).collect(Collectors.toSet());
+
+		Set<String> rKeys = Sets.newHashSet();
+		if (i.getCollectedFrom() != null)
+			rKeys = i.getCollectedFrom().stream().map(KeyValue::getKey).collect(Collectors.toSet());
 
 		if (this.getType().compareTo(i.getType()) == 0) { // same type
 			if (entityType == EntityType.publication) {
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/OrgSimRel.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/OrgSimRel.java
index 50164ce4cd..65f3835001 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/OrgSimRel.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/model/OrgSimRel.java
@@ -12,12 +12,13 @@ public class OrgSimRel implements Serializable {
 	String oa_country;
 	String oa_url;
 	String oa_collectedfrom;
+	String group_id;
 
 	public OrgSimRel() {
 	}
 
 	public OrgSimRel(String local_id, String oa_original_id, String oa_name, String oa_acronym, String oa_country,
-		String oa_url, String oa_collectedfrom) {
+		String oa_url, String oa_collectedfrom, String group_id) {
 		this.local_id = local_id;
 		this.oa_original_id = oa_original_id;
 		this.oa_name = oa_name;
@@ -25,6 +26,7 @@ public class OrgSimRel implements Serializable {
 		this.oa_country = oa_country;
 		this.oa_url = oa_url;
 		this.oa_collectedfrom = oa_collectedfrom;
+		this.group_id = group_id;
 	}
 
 	public String getLocal_id() {
@@ -83,6 +85,14 @@ public class OrgSimRel implements Serializable {
 		this.oa_collectedfrom = oa_collectedfrom;
 	}
 
+	public String getGroup_id() {
+		return group_id;
+	}
+
+	public void setGroup_id(String group_id) {
+		this.group_id = group_id;
+	}
+
 	@Override
 	public String toString() {
 		return "OrgSimRel{" +
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/orgsdedup/oozie_app/workflow.xml b/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/orgsdedup/oozie_app/workflow.xml
index ec9967d6a0..e7c95ee8d4 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/orgsdedup/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/orgsdedup/oozie_app/workflow.xml
@@ -112,7 +112,7 @@
     <action name="copyRelations">
         <distcp xmlns="uri:oozie:distcp-action:0.2">
             <arg>-pb</arg>
-            <arg>${graphBasePath}/relation</arg>
+            <arg>/tmp/graph_openorgs_and_corda/relation</arg>
             <arg>${workingPath}/${actionSetId}/organization_simrel</arg>
         </distcp>
         <ok to="CreateSimRel"/>
@@ -194,6 +194,37 @@
             <arg>--workingPath</arg><arg>${workingPath}</arg>
             <arg>--isLookUpUrl</arg><arg>${isLookUpUrl}</arg>
             <arg>--actionSetId</arg><arg>${actionSetId}</arg>
+            <arg>--dbUrl</arg><arg>${dbUrl}</arg>
+            <arg>--dbTable</arg><arg>${dbTable}</arg>
+            <arg>--dbUser</arg><arg>${dbUser}</arg>
+            <arg>--dbPwd</arg><arg>${dbPwd}</arg>
+            <arg>--numConnections</arg><arg>20</arg>
+        </spark>
+        <ok to="PrepareNewOrgs"/>
+        <error to="Kill"/>
+    </action>
+
+    <action name="PrepareNewOrgs">
+        <spark xmlns="uri:oozie:spark-action:0.2">
+            <master>yarn</master>
+            <mode>cluster</mode>
+            <name>Prepare New Organizations</name>
+            <class>eu.dnetlib.dhp.oa.dedup.SparkPrepareNewOrgs</class>
+            <jar>dhp-dedup-openaire-${projectVersion}.jar</jar>
+            <spark-opts>
+                --executor-memory=${sparkExecutorMemory}
+                --executor-cores=${sparkExecutorCores}
+                --driver-memory=${sparkDriverMemory}
+                --conf spark.extraListeners=${spark2ExtraListeners}
+                --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
+                --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
+                --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
+                --conf spark.sql.shuffle.partitions=3840
+            </spark-opts>
+            <arg>--graphBasePath</arg><arg>${graphBasePath}</arg>
+            <arg>--workingPath</arg><arg>${workingPath}</arg>
+            <arg>--isLookUpUrl</arg><arg>${isLookUpUrl}</arg>
+            <arg>--actionSetId</arg><arg>${actionSetId}</arg>
             <arg>--apiUrl</arg><arg>${apiUrl}</arg>
             <arg>--dbUrl</arg><arg>${dbUrl}</arg>
             <arg>--dbTable</arg><arg>${dbTable}</arg>
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareNewOrgs_parameters.json b/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareNewOrgs_parameters.json
index 2119cbc3aa..b70d1af281 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareNewOrgs_parameters.json
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareNewOrgs_parameters.json
@@ -29,6 +29,12 @@
     "paramDescription": "number of connections to the postgres db (for the write operation)",
     "paramRequired": false
   },
+  {
+    "paramName": "au",
+    "paramLongName": "apiUrl",
+    "paramDescription": "the url for the APIs of the openorgs service",
+    "paramRequired": false
+  },
   {
     "paramName": "du",
     "paramLongName": "dbUrl",
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareOrgRels_parameters.json b/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareOrgRels_parameters.json
index b70d1af281..2119cbc3aa 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareOrgRels_parameters.json
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/resources/eu/dnetlib/dhp/oa/dedup/prepareOrgRels_parameters.json
@@ -29,12 +29,6 @@
     "paramDescription": "number of connections to the postgres db (for the write operation)",
     "paramRequired": false
   },
-  {
-    "paramName": "au",
-    "paramLongName": "apiUrl",
-    "paramDescription": "the url for the APIs of the openorgs service",
-    "paramRequired": false
-  },
   {
     "paramName": "du",
     "paramLongName": "dbUrl",
diff --git a/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/IdGeneratorTest.java b/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/IdGeneratorTest.java
index 1bf8515271..403498aeb7 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/IdGeneratorTest.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/IdGeneratorTest.java
@@ -1,17 +1,6 @@
+
 package eu.dnetlib.dhp.oa.dedup;
 
-import com.google.common.collect.Lists;
-import eu.dnetlib.dhp.oa.dedup.model.Identifier;
-import eu.dnetlib.dhp.oa.dedup.model.PidType;
-import eu.dnetlib.dhp.schema.common.EntityType;
-import eu.dnetlib.dhp.schema.oaf.KeyValue;
-import eu.dnetlib.dhp.schema.oaf.Publication;
-import eu.dnetlib.dhp.schema.oaf.Qualifier;
-import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
-import eu.dnetlib.pace.util.MapDocumentUtil;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.junit.jupiter.api.*;
-import scala.Tuple2;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.io.BufferedReader;
@@ -22,119 +11,149 @@ import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import java.util.stream.Collectors;
+
+import org.codehaus.jackson.map.ObjectMapper;
+import org.junit.jupiter.api.*;
+
+import com.google.common.collect.Lists;
+
+import eu.dnetlib.dhp.oa.dedup.model.Identifier;
+import eu.dnetlib.dhp.oa.dedup.model.PidType;
+import eu.dnetlib.dhp.schema.common.EntityType;
+import eu.dnetlib.dhp.schema.oaf.KeyValue;
+import eu.dnetlib.dhp.schema.oaf.Publication;
+import eu.dnetlib.dhp.schema.oaf.Qualifier;
+import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+import eu.dnetlib.pace.util.MapDocumentUtil;
+import scala.Tuple2;
 
 @TestMethodOrder(MethodOrderer.OrderAnnotation.class)
 public class IdGeneratorTest {
 
-    private static List<Identifier> bestIds;
-    private static List<Tuple2<String, Publication>> pubs;
+	private static List<Identifier> bestIds;
+	private static List<Tuple2<String, Publication>> pubs;
 
-    private static List<Identifier> bestIds2;
-    private static List<Identifier> bestIds3;
+	private static List<Identifier> bestIds2;
+	private static List<Identifier> bestIds3;
 
-    private static String testEntityBasePath;
+	private static String testEntityBasePath;
 
-    private static SimpleDateFormat sdf;
-    private static Date baseDate;
+	private static SimpleDateFormat sdf;
+	private static Date baseDate;
 
-    @BeforeAll
-    public static void setUp() throws Exception {
+	@BeforeAll
+	public static void setUp() throws Exception {
 
-        sdf = new SimpleDateFormat("yyyy-MM-dd");
-        baseDate = sdf.parse("2000-01-01");
+		sdf = new SimpleDateFormat("yyyy-MM-dd");
+		baseDate = sdf.parse("2000-01-01");
 
-        bestIds = new ArrayList<>();
-        bestIds2 = Lists.newArrayList(
-                new Identifier(pid("pid1", "original", "original"), baseDate, PidType.original, keyValue("key", "value"), EntityType.publication, "50|originalID1"),
-                new Identifier(pid("pid2", "original", "original"), baseDate, PidType.original, keyValue("key", "value"), EntityType.publication, "50|originalID2"),
-                new Identifier(pid("pid3", "original", "original"), baseDate, PidType.original, keyValue("key", "value"), EntityType.publication, "50|originalID3")
-        );
-        bestIds3 = Lists.newArrayList(
-                new Identifier(pid("pid1", "original", "original"), baseDate, PidType.original, keyValue("key", "value"), EntityType.publication, "50|originalID1"),
-                new Identifier(pid("pid2", "doi", "doi"), baseDate, PidType.doi, keyValue("key", "value"), EntityType.publication, "50|originalID2"),
-                new Identifier(pid("pid3", "original", "original"), baseDate, PidType.original, keyValue("key", "value"), EntityType.publication, "50|originalID3")
-        );
+		bestIds = new ArrayList<>();
+		bestIds2 = Lists
+			.newArrayList(
+				new Identifier(pid("pid1", "original", "original"), baseDate, PidType.original,
+					keyValue("key", "value"), EntityType.publication, "50|originalID1"),
+				new Identifier(pid("pid2", "original", "original"), baseDate, PidType.original,
+					keyValue("key", "value"), EntityType.publication, "50|originalID2"),
+				new Identifier(pid("pid3", "original", "original"), baseDate, PidType.original,
+					keyValue("key", "value"), EntityType.publication, "50|originalID3"));
+		bestIds3 = Lists
+			.newArrayList(
+				new Identifier(pid("pid1", "original", "original"), baseDate, PidType.original,
+					keyValue("key", "value"), EntityType.publication, "50|originalID1"),
+				new Identifier(pid("pid2", "doi", "doi"), baseDate, PidType.doi, keyValue("key", "value"),
+					EntityType.publication, "50|originalID2"),
+				new Identifier(pid("pid3", "original", "original"), baseDate, PidType.original,
+					keyValue("key", "value"), EntityType.publication, "50|originalID3"));
 
-        testEntityBasePath = Paths
-                .get(SparkDedupTest.class.getResource("/eu/dnetlib/dhp/dedup/json").toURI())
-                .toFile()
-                .getAbsolutePath();
+		testEntityBasePath = Paths
+			.get(SparkDedupTest.class.getResource("/eu/dnetlib/dhp/dedup/json").toURI())
+			.toFile()
+			.getAbsolutePath();
 
-        pubs = readSample(testEntityBasePath + "/publication_idgeneration.json", Publication.class);
+		pubs = readSample(testEntityBasePath + "/publication_idgeneration.json", Publication.class);
 
-    }
+	}
 
-    @Test
-    @Order(1)
-    public void bestPidToIdentifierTest(){
+	@Test
+	@Order(1)
+	public void bestPidToIdentifierTest() {
 
-        List<String> typesForAssertions = Lists.newArrayList(PidType.pmc.toString(), PidType.doi.toString(), PidType.doi.toString());
+		List<String> typesForAssertions = Lists
+			.newArrayList(PidType.pmc.toString(), PidType.doi.toString(), PidType.doi.toString());
 
-        for (Tuple2<String, Publication> pub : pubs) {
-            List<Identifier> ids = IdGenerator.bestPidToIdentifier(pub._2());
-            assertEquals(typesForAssertions.get(pubs.indexOf(pub)), ids.get(0).getPid().getQualifier().getClassid());
-            bestIds.addAll(ids);
-        }
-    }
+		for (Tuple2<String, Publication> pub : pubs) {
+			List<Identifier> ids = IdGenerator.bestPidToIdentifier(pub._2());
+			assertEquals(typesForAssertions.get(pubs.indexOf(pub)), ids.get(0).getPid().getQualifier().getClassid());
+			bestIds.addAll(ids);
+		}
+	}
 
-    @Test
-    @Order(2)
-    public void generateIdTest1(){
-        String id1 = IdGenerator.generate(bestIds, "50|defaultID");
+	@Test
+	@Order(2)
+	public void generateIdTest1() {
+		String id1 = IdGenerator.generate(bestIds, "50|defaultID");
 
-        assertEquals("50|dedup_doi___::84f2cc49e3af11f20952eae15cdae066", id1);
-    }
+		System.out.println("id list 1 = " + bestIds.stream().map(i -> i.getPid().getValue()).collect(Collectors.toList()));
 
-    @Test
-    public void generateIdTest2(){
-        String id1 = IdGenerator.generate(bestIds2, "50|defaultID");
-        String id2 = IdGenerator.generate(bestIds3, "50|defaultID");
+		assertEquals("50|dedup_wf_001::9c5cfbf993d38476e0f959a301239719", id1);
+	}
 
-        assertEquals("50|dedup_wf_001::2c56cc1914bffdb30fdff354e0099612", id1);
-        assertEquals("50|dedup_doi___::128ead3ed8d9ecf262704b6fcf592b8d", id2);
-    }
+	@Test
+	public void generateIdTest2() {
+		String id1 = IdGenerator.generate(bestIds2, "50|defaultID");
+		String id2 = IdGenerator.generate(bestIds3, "50|defaultID");
 
-    public static <T> List<Tuple2<String, T>> readSample(String path, Class<T> clazz) {
-        List<Tuple2<String, T>> res = new ArrayList<>();
-        BufferedReader reader;
-        try {
-            reader = new BufferedReader(new FileReader(path));
-            String line = reader.readLine();
-            while (line != null) {
-                res
-                        .add(
-                                new Tuple2<>(
-                                        MapDocumentUtil.getJPathString("$.id", line),
-                                        new ObjectMapper().readValue(line, clazz)));
-                // read next line
-                line = reader.readLine();
-            }
-            reader.close();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
+		System.out.println("id list 2 = " + bestIds2.stream().map(i -> i.getPid().getValue()).collect(Collectors.toList()));
+		System.out.println("winner 2 = " + id1);
+		System.out.println("id list 3 = " + bestIds3.stream().map(i -> i.getPid().getValue()).collect(Collectors.toList()));
+		System.out.println("winner 3 = " + id2);
 
-        return res;
-    }
+		assertEquals("50|dedup_wf_001::2c56cc1914bffdb30fdff354e0099612", id1);
+		assertEquals("50|dedup_doi___::128ead3ed8d9ecf262704b6fcf592b8d", id2);
+	}
 
-    public static StructuredProperty pid(String pid, String classid, String classname){
+	public static <T> List<Tuple2<String, T>> readSample(String path, Class<T> clazz) {
+		List<Tuple2<String, T>> res = new ArrayList<>();
+		BufferedReader reader;
+		try {
+			reader = new BufferedReader(new FileReader(path));
+			String line = reader.readLine();
+			while (line != null) {
+				res
+					.add(
+						new Tuple2<>(
+							MapDocumentUtil.getJPathString("$.id", line),
+							new ObjectMapper().readValue(line, clazz)));
+				// read next line
+				line = reader.readLine();
+			}
+			reader.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
 
-        StructuredProperty sp = new StructuredProperty();
-        sp.setValue(pid);
-        Qualifier q = new Qualifier();
-        q.setSchemeid(classid);
-        q.setSchemename(classname);
-        q.setClassname(classname);
-        q.setClassid(classid);
-        sp.setQualifier(q);
-        return sp;
-    }
+		return res;
+	}
 
-    public static List<KeyValue> keyValue(String key, String value){
+	public static StructuredProperty pid(String pid, String classid, String classname) {
 
-        KeyValue kv = new KeyValue();
-        kv.setKey(key);
-        kv.setValue(value);
-        return Lists.newArrayList(kv);
-    }
+		StructuredProperty sp = new StructuredProperty();
+		sp.setValue(pid);
+		Qualifier q = new Qualifier();
+		q.setSchemeid(classid);
+		q.setSchemename(classname);
+		q.setClassname(classname);
+		q.setClassid(classid);
+		sp.setQualifier(q);
+		return sp;
+	}
+
+	public static List<KeyValue> keyValue(String key, String value) {
+
+		KeyValue kv = new KeyValue();
+		kv.setKey(key);
+		kv.setValue(value);
+		return Lists.newArrayList(kv);
+	}
 }
diff --git a/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java b/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java
index 6516eda521..b849160ffc 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java
@@ -1,18 +1,12 @@
 
 package eu.dnetlib.dhp.oa.dedup;
 
-import static java.nio.file.Files.createTempDirectory;
-
-import static org.apache.spark.sql.functions.count;
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.mockito.Mockito.lenient;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.Serializable;
-import java.net.URISyntaxException;
-import java.nio.file.Paths;
-
+import com.fasterxml.jackson.databind.ObjectMapper;
+import eu.dnetlib.dhp.application.ArgumentApplicationParser;
+import eu.dnetlib.dhp.schema.oaf.Relation;
+import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpException;
+import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
+import eu.dnetlib.pace.util.MapDocumentUtil;
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.IOUtils;
 import org.apache.spark.SparkConf;
@@ -22,22 +16,28 @@ import org.apache.spark.api.java.JavaSparkContext;
 import org.apache.spark.api.java.function.FilterFunction;
 import org.apache.spark.api.java.function.MapFunction;
 import org.apache.spark.api.java.function.PairFunction;
-import org.apache.spark.sql.*;
+import org.apache.spark.sql.Dataset;
+import org.apache.spark.sql.Encoders;
+import org.apache.spark.sql.Row;
+import org.apache.spark.sql.SparkSession;
 import org.junit.jupiter.api.*;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.Mockito;
 import org.mockito.junit.jupiter.MockitoExtension;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-
-import eu.dnetlib.dhp.application.ArgumentApplicationParser;
-import eu.dnetlib.dhp.schema.oaf.Relation;
-import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpException;
-import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
-import eu.dnetlib.pace.util.MapDocumentUtil;
 import scala.Tuple2;
 
+import java.io.File;
+import java.io.IOException;
+import java.io.Serializable;
+import java.net.URISyntaxException;
+import java.nio.file.Paths;
+
+import static java.nio.file.Files.createTempDirectory;
+import static org.apache.spark.sql.functions.count;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.lenient;
+
 @ExtendWith(MockitoExtension.class)
 @TestMethodOrder(MethodOrderer.OrderAnnotation.class)
 public class SparkDedupTest implements Serializable {