Index: /home/clovis/workspace/castor/cpa/src/main/java/org/castor/cpa/persistence/sql/keygen/SequenceKeyGenerator.java
===================================================================
--- /home/clovis/workspace/castor/cpa/src/main/java/org/castor/cpa/persistence/sql/keygen/SequenceKeyGenerator.java	(revision 8194)
+++ /home/clovis/workspace/castor/cpa/src/main/java/org/castor/cpa/persistence/sql/keygen/SequenceKeyGenerator.java	(working copy)
@@ -62,6 +62,7 @@
 import org.castor.cpa.persistence.sql.driver.InterbaseFactory;
 import org.castor.cpa.persistence.sql.driver.OracleFactory;
 import org.castor.cpa.persistence.sql.driver.PostgreSQLFactory;
+import org.castor.cpa.persistence.sql.driver.SapDbFactory;
 import org.exolab.castor.mapping.MappingException;
 import org.exolab.castor.persist.spi.PersistenceFactory;
 
@@ -211,7 +212,8 @@
         boolean returning = "true".equals(params.getProperty("returning"));
         _triggerPresent = "true".equals(params.getProperty("trigger", "false"));
 
-        if (!_factoryName.equals(OracleFactory.FACTORY_NAME) && returning) {
+        if (!(_factoryName.equals(OracleFactory.FACTORY_NAME)
+        	  || factory instanceof SapDbFactory) && returning) {
             throw new MappingException(Messages.format("mapping.keyGenParamNotCompat",
                     "returning=\"true\"", getClass().getName(), _factoryName));
         }