diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/ModelHardLimits.java b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/ModelHardLimits.java
index 36d138ba1..74cd1b42a 100644
--- a/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/ModelHardLimits.java
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/ModelHardLimits.java
@@ -12,6 +12,7 @@ public class ModelHardLimits {
 
 	public static final int MAX_EXTERNAL_ENTITIES = 50;
 	public static final int MAX_AUTHORS = 200;
+	public static final int MAX_RELATED_AUTHORS = 20;
 	public static final int MAX_AUTHOR_FULLNAME_LENGTH = 1000;
 	public static final int MAX_TITLE_LENGTH = 5000;
 	public static final int MAX_TITLES = 10;
diff --git a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/CreateRelatedEntitiesJob_phase1.java b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/CreateRelatedEntitiesJob_phase1.java
index 63f3c2ead..add1c80fa 100644
--- a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/CreateRelatedEntitiesJob_phase1.java
+++ b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/CreateRelatedEntitiesJob_phase1.java
@@ -3,6 +3,7 @@ package eu.dnetlib.dhp.oa.provision;
 
 import static eu.dnetlib.dhp.common.SparkSessionSupport.runWithSparkSession;
 
+import java.util.Comparator;
 import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
@@ -167,8 +168,9 @@ public class CreateRelatedEntitiesJob_phase1 {
 					result
 						.getDescription()
 						.stream()
-						.findFirst()
+						.filter(d -> Objects.nonNull(d.getValue()))
 						.map(Field::getValue)
+						.max(Comparator.comparingInt(String::length))
 						.ifPresent(
 							d -> re.setDescription(StringUtils.left(d, ModelHardLimits.MAX_RELATED_ABSTRACT_LENGTH)));
 				}
diff --git a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/ProvisionModelSupport.java b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/ProvisionModelSupport.java
index 4a2326453..bc02b595f 100644
--- a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/ProvisionModelSupport.java
+++ b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/ProvisionModelSupport.java
@@ -5,6 +5,7 @@ import java.io.StringReader;
 import java.util.*;
 import java.util.stream.Collectors;
 
+import eu.dnetlib.dhp.schema.oaf.utils.ModelHardLimits;
 import org.apache.commons.lang3.StringUtils;
 import org.dom4j.Document;
 import org.dom4j.DocumentException;
@@ -150,6 +151,12 @@ public class ProvisionModelSupport {
 		rr.setPublisher(re.getPublisher());
 		rr.setResulttype(mapQualifier(re.getResulttype()));
 		rr.setTitle(Optional.ofNullable(re.getTitle()).map(StructuredProperty::getValue).orElse(null));
+		rr.setDescription(StringUtils.left(re.getDescription(), ModelHardLimits.MAX_RELATED_ABSTRACT_LENGTH));
+		rr.setAuthor(Optional.ofNullable(re.getAuthor())
+				.map(aa -> aa.stream()
+						.limit(ModelHardLimits.MAX_RELATED_AUTHORS)
+						.collect(Collectors.toList()))
+				.orElse(null));
 
 		if (relation.getValidated() == null) {
 			relation.setValidated(false);
@@ -378,6 +385,7 @@ public class ProvisionModelSupport {
 		rs.setPubliclyFunded(r.getPubliclyFunded());
 		rs.setTransformativeAgreement(r.getTransformativeAgreement());
 		rs.setExternalReference(mapExternalReference(r.getExternalReference()));
+		rs.setBestinstancetype(mapQualifier(r.getBestInstancetype()));
 		rs.setInstance(mapInstances(r.getInstance()));
 
 		if (r instanceof Publication) {
@@ -667,14 +675,23 @@ public class ProvisionModelSupport {
 	}
 
 	private static List<Author> asAuthor(List<eu.dnetlib.dhp.schema.oaf.Author> authorList) {
+		return asAuthor(authorList, ModelHardLimits.MAX_AUTHORS);
+	}
+
+	private static List<Author> asAuthor(List<eu.dnetlib.dhp.schema.oaf.Author> authorList, int maxAuthors) {
 		return Optional
 			.ofNullable(authorList)
 			.map(
 				authors -> authors
 					.stream()
+					.limit(maxAuthors)
 					.map(
 						a -> Author
-							.newInstance(a.getFullname(), a.getName(), a.getSurname(), a.getRank(), asPid(a.getPid())))
+							.newInstance(
+									StringUtils.left(a.getFullname(), ModelHardLimits.MAX_AUTHOR_FULLNAME_LENGTH),
+									a.getName(),
+									a.getSurname(),
+									a.getRank(), asPid(a.getPid())))
 					.collect(Collectors.toList()))
 			.orElse(null);
 	}
diff --git a/pom.xml b/pom.xml
index e1d99f25b..9480ddfc0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -937,7 +937,7 @@
         <commons.logging.version>1.1.3</commons.logging.version>
         <commons-validator.version>1.7</commons-validator.version>
         <dateparser.version>1.0.7</dateparser.version>
-        <dhp-schemas.version>[8.0.1]</dhp-schemas.version>
+        <dhp-schemas.version>[9.0.0]</dhp-schemas.version>
         <dhp.cdh.version>cdh5.9.2</dhp.cdh.version>
         <dhp.commons.lang.version>3.5</dhp.commons.lang.version>
         <dhp.guava.version>11.0.2</dhp.guava.version>