A few PTFs have not been installed, as they introduce possible problems. PTF UY49086 is known to break TGET and TPU services, and no fix is available. Others refer to a SYSGEN symbol called &SGDTCAM, which unfortunately is not provided by any of the PTFs available for us. Here are the excluded PTFs
| UY06435 | References &SGDTCAM | |
| UY15877 | References &SGDTCAM | |
| UY28057 | References &SGDTCAM | |
| is PRE of | UY30714 | |
| UY33687 | References &SGDTCAM | |
| is PRE of | UY37520 | |
| is PRE of | UY38888 | |
| UY49086 | breaks SVC 93 | |
| is PRE of | UW06722 | |
| is PRE of | UW36560 | |
| is PRE of | UY51364 | |
| is PRE of | UW00219 | |
| is PRE of | UY88772 | |
| UZ78722 | Not required |