diff --git a/configadmin/src/main/java/org/apache/felix/cm/impl/ConfigurationManager.java b/configadmin/src/main/java/org/apache/felix/cm/impl/ConfigurationManager.java
index 60d216e..3794599 100644
--- a/configadmin/src/main/java/org/apache/felix/cm/impl/ConfigurationManager.java
+++ b/configadmin/src/main/java/org/apache/felix/cm/impl/ConfigurationManager.java
@@ -1688,6 +1688,12 @@
                 // update the lastUpdatedTime
                 config.setLastUpdatedTime( lastModificationTime );
             }
+            else if ( isLogEnabled( LogService.LOG_DEBUG ) )
+            {
+                log( LogService.LOG_DEBUG, "No ManagedService registered for updates to configuration {0}",
+                    new Object[]
+                        { config.getPid() } );
+            }
         }