diff --git a/core/dbobject.class.php b/core/dbobject.class.php
index e4b8a9ff4b..75d45e7734 100644
--- a/core/dbobject.class.php
+++ b/core/dbobject.class.php
@@ -742,6 +742,30 @@ public function SetIfNull($sAttCode, $value)
 		}
 	}
 
+	/**
+	 * Helper to copy a value only if the target is currently undefined
+	 *
+	 * Call Copy() only of the internal representation of the target attribute is null.
+	 *
+	 * @api
+	 * @see Copy()
+	 * @see SetIfNull())
+	 *
+	 * @param string $sDestAttCode
+	 * @param string $sSourceAttCode
+	 *
+	 * @return bool true if copy was successfull or was not performed because target attribute isn't null
+	 *
+	 * @throws \CoreException
+	 * @throws \CoreUnexpectedValue
+	 * @throws \Exception
+	 */
+	public function CopyIfNull($sDestAttCode, $sSourceAttCode)
+	{
+		$this->SetIfNull($sDestAttCode, $this->Get($sSourceAttCode));
+		return true;
+	}
+
     /**
      * Helper to set a value that fits the attribute max size
      *