Customer was renaming a Partitioned Data Set (referred here as PDS) member using the following SYSIN entries in IDCAMS and encountered the error JCLAM0115E(08):
                     ALTER   PARMLIB(TESTPRM)           -                                                                            
                             NEWNAME(PARMLIB(TESTPRM2))                                                                               
 JCLAM0115E(08) - ENTRYNAME NOT CATALOGED [PARMLIB(TESTPRM)

Full article: https://portal.microfocus.com/s/article/KM000014038