diff --git a/onces/YKPN/YKPN#56012.sql b/onces/YKPN/YKPN#56012.sql
new file mode 100644
index 000000000..874337273
--- /dev/null
+++ b/onces/YKPN/YKPN#56012.sql
@@ -0,0 +1,37 @@
+--
+-- $Id$
+--
+-- Bezoekers die niet zijn UIT-gemeld eenmalig allemaal uitmelden
+
+DEFINE thisfile = 'YKPN#56012.sql'
+DEFINE dbuser   = '^YKPN'
+DEFINE custid   = 'YKPN'
+
+SET ECHO ON
+SET DEFINE ON
+COLUMN fcltlogfile NEW_VALUE fcltlogfile NOPRINT;
+WHENEVER SQLERROR EXIT;
+SELECT adm.scriptspoolfile('&dbuser', '&thisfile') AS fcltlogfile FROM DUAL;
+WHENEVER SQLERROR CONTINUE;
+SPOOL &fcltlogfile
+SET DEFINE OFF
+
+------ payload begin ------
+
+UPDATE bez_bezoekers
+   SET bez_bezoekers_out = SYSDATE
+ WHERE     bez_bezoekers_done IS NOT NULL
+       AND bez_bezoekers_out IS NULL
+       AND TRUNC (bez_bezoekers_done) < TRUNC (SYSDATE);
+
+------ payload end   ------
+
+SET DEFINE OFF
+BEGIN adm.systrackscriptId ('$Id$', 1); END;
+/
+
+COMMIT;
+SET ECHO OFF
+SPOOL OFF
+SET DEFINE ON
+PROMPT Logfile of this upgrade is: &fcltlogfile
\ No newline at end of file