=== modified file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/datavalueset/DefaultDataValueSetService.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/datavalueset/DefaultDataValueSetService.java	2014-09-24 14:26:12 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/datavalueset/DefaultDataValueSetService.java	2014-09-24 14:40:12 +0000
@@ -670,6 +670,16 @@
             internalValue.setComment( trimToNull( dataValue.getComment() ) );
             internalValue.setFollowup( dataValue.getFollowup() );
 
+            String valid = ValidationUtils.dataValueIsValid( internalValue.getValue(), dataElement );
+
+            boolean zeroInsignificant = ValidationUtils.dataValueIsZeroAndInsignificant( internalValue.getValue(), dataElement );
+            
+            if ( valid != null || zeroInsignificant )
+            {
+                summary.getConflicts().add( new ImportConflict( DataValue.class.getSimpleName(), internalValue.getValue() ) );
+                continue;
+            }
+            
             if ( !skipExistingCheck && batchHandler.objectExists( internalValue ) )
             {
                 if ( strategy.isCreateAndUpdate() || strategy.isUpdate() )