Could you state: What version of CICS? What version of z/OS? Is this native VSAM File or RLS?
Also, a quick peek at the manual on READPREV in CICS shows 16 INVREQ RESP2 values: 24 A READPREV command is issued for a file for which the previous STARTBR or RESETBR command has the GENERIC option If this is the correct codes, have you verified this? Also, this might help http://pic.dhe.ibm.com/infocenter/cicsts/v4r1/index.jsp?topic=%2Fcom.ibm.cic s.ts.applicationprogramming.doc%2Fcommands%2Fdfhp4_readprev.html Lizette -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Lizette Koehler Sent: Thursday, August 01, 2013 8:38 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: VSAM Status Code 16/24 on READPREV If you go to SYSLOG at the time of the error, you might find some additional messages (IEC or other) Also, the CICS log may help. Lizette -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of John Weber Sent: Thursday, August 01, 2013 8:26 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: VSAM Status Code 16/24 on READPREV All, We are receiving a status code 16/24 while performing a KSDS VSAM 'READPREV'. This exception only occurs when the key is specified but does not occur if it is not entered through our UI. References point to it having MicroFocus origins, but we are running this on the mainframe under CICS. Any direction as to where to look next would be much appreciated. Thanks... John ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN