diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/parser/SampleUploadSectionsParser.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/parser/SampleUploadSectionsParser.java
index 45319af47c04512951c53c3eab806e44fe21f824..6d1aa623d4e3a6bfac282be952f0b9582d262e9a 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/parser/SampleUploadSectionsParser.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/parser/SampleUploadSectionsParser.java
@@ -25,8 +25,6 @@ import java.util.Map;
 
 import org.apache.commons.lang.StringUtils;
 
-import ch.ethz.sis.openbis.generic.asapi.v3.dto.project.id.ProjectIdentifier;
-import ch.ethz.sis.openbis.generic.asapi.v3.dto.sample.id.SampleIdentifier;
 import ch.systemsx.cisd.common.io.DelegatedReader;
 import ch.systemsx.cisd.common.parser.ExcelFileLoader;
 import ch.systemsx.cisd.common.parser.IParserObjectFactory;
@@ -363,11 +361,24 @@ public class SampleUploadSectionsParser
             			String[] experimentIdentifierParts = newSamples.get(i).getExperimentIdentifier().split("/");
             			projectCodeOrNull = experimentIdentifierParts[experimentIdentifierParts.length - 2];
             		}
-            		SampleIdentifier identifier = new SampleIdentifier(spaceCodeOrNull, projectCodeOrNull, null, codes.get(i));
-            		newSamples.get(i).setIdentifier(identifier.getIdentifier());
+            		newSamples.get(i).setIdentifier(createIdentifier(spaceCodeOrNull, projectCodeOrNull, codes.get(i)));
             }
         }
     }
+    
+    private static String createIdentifier(String spaceCodeOrNull, String projectCodeOrNull, String sampleCode)
+    {
+        StringBuilder builder = new StringBuilder("/");
+        if (spaceCodeOrNull != null)
+        {
+            builder.append(spaceCodeOrNull).append("/");
+        }
+        if (projectCodeOrNull != null)
+        {
+            builder.append(projectCodeOrNull).append("/");
+        }
+        return builder.append(sampleCode).toString();
+    }
 
     private static void fillIdentifiers(String defaultGroupIdentifier,
             List<NewSamplesWithTypes> newSamplesWithTypes)