diff --git a/dhp-common/src/main/scala/eu/dnetlib/dhp/common/author/SparkEnrichWithOrcidAuthors.scala b/dhp-common/src/main/scala/eu/dnetlib/dhp/common/author/SparkEnrichWithOrcidAuthors.scala
index 285f28b90..717409ba6 100644
--- a/dhp-common/src/main/scala/eu/dnetlib/dhp/common/author/SparkEnrichWithOrcidAuthors.scala
+++ b/dhp-common/src/main/scala/eu/dnetlib/dhp/common/author/SparkEnrichWithOrcidAuthors.scala
@@ -7,6 +7,9 @@ import org.apache.spark.sql._
 import org.apache.spark.sql.functions._
 import org.slf4j.{Logger, LoggerFactory}
 import eu.dnetlib.dhp.common.enrichment.Constants.PROPAGATION_DATA_INFO_TYPE
+import eu.dnetlib.dhp.schema.oaf.Result
+import eu.dnetlib.dhp.schema.oaf.utils.MergeUtils
+import org.apache.spark.sql.expressions.Aggregator
 
 import scala.collection.JavaConverters._
 
@@ -39,7 +42,7 @@ abstract class SparkEnrichWithOrcidAuthors(propertyPath: String, args: Array[Str
   }
 
   private def generateGraph(spark: SparkSession, graphPath: String, workingDir: String, targetPath: String): Unit = {
-
+    implicit val oafEntityEncoder: Encoder[Result] = Encoders.kryo[Result]
     ModelSupport.entityTypes.asScala
       .filter(e => ModelSupport.isResult(e._1))
       .foreach(e => {
@@ -62,7 +65,13 @@ abstract class SparkEnrichWithOrcidAuthors(propertyPath: String, args: Array[Str
             when(size(col("enriched_author")).gt(0), col("enriched_author"))
               .otherwise(col("author"))
           )
-          .drop("enriched_author")
+          .drop("enriched_author").as[Result]
+          .groupByKey(r => r.getId)(Encoders[String])
+          .mapGroups((key: String, group: Iterator[Result]) => {
+            var r = group.next()
+            group.foreach(r1 => r = MergeUtils.mergeResult(r,r1))
+            r
+          }).as[Result]
           .write
           .mode(SaveMode.Overwrite)
           .option("compression", "gzip")
@@ -72,6 +81,9 @@ abstract class SparkEnrichWithOrcidAuthors(propertyPath: String, args: Array[Str
 
   }
 
+
+
+
   def createTemporaryData(spark: SparkSession, graphPath: String, orcidPath: String, targetPath: String): Unit
 
   private def analisys(targetPath: String, classid: String, provenance: String): Unit = {