The following is a list of CICS internal transactions and their descriptions: 
               	 
            
 
            	 
             
               		 
               		  
               - CDEQ 
                  		  
               
- Data file editor DEQ file on timeout. 
                  		  
               
- CKBC 
                  		  
               
- CICS-MQ bridge - DPL container. 
                  		  
               
- CKBP 
                  		  
               
- CICS-MQ bridge - DPL commarea. 
                  		  
               
- CKBR 
                  		  
               
- CICS-MQ bridge - monitor task. 
                  		  
               
- COFF 
                  		  
               
- Input timeout logoff transaction. 
                  		  
               
- CPIH 
                  		  
               
- CICS Web Services PIPELINE processing. 
                  		  
               
- CPIL 
                  		  
               
- CICS Web services SOAP MQ inbound listener. 
                  		  
               
- CPIQ 
                  		  
               
- CICS Web services SOAP message MQ inbound router. 
                  		  
               
- CPIR 
                  		  
               
- CICS Web services pipeline resolution transaction. 
                  		  
               
- CSOC 
                  		  
               
- EZASOKET PLTPI auto start listeners. 
                  		  
               
- CTRN 
                  		  
               
- Castran internal transaction. 
                  		  
               
- CTSC 
                  		  
               
- TS expiry transaction. 
                  		  
               
- CZM1 
                  		  
               
- Send message to all terminals from 
                  			 ESCWA/ESMAC page. Used as a class 3 transaction, no RLS. 
                  		  
               
- CZMG 
                  		  
               
- Send message to all terminals from 
                  			 ESCWA/ESMAC page. 
                  		  
               
- CZTS 
                  		  
               
- ESCWA/ESCWA delete TS. 
                  		  
               
- MERQ 
                  		  
               
- IMTK CICS service interface EBCDIC runtime. 
                  		  
               
- MERT 
                  		  
               
- IMTK CICS service interface EBCDIC trace. 
                  		  
               
- MMTM 
                  		  
               
- IMTM CICS Service Interface EBCDIC WebSphere MQ trigger monitor. 
                  		  
               
- MQMW 
                  		  
               
- IMTK CICS service interface EBCDIC WebSphere MQ triggered program. 
                  		  
               
-  PIP1
                  		  
               
-  PLTPI Phase 1 startup 
                  			 enterprise server region runs programs in PLTPI list once.
                  		  
               
-  PIP2
                  		  
               
-  PLTPI Phase 2 startup 
                  			 enterprise server region runs programs in PLTPI list in each process.
                  		  
               
-  SDP1
                  		  
               
-  PLTSD Phase 1 
                  			 enterprise server region shutdown PLTSD runs once only.
                  		  
               
-  SDP2
                  		  
               
-  PLTSD Phase 2 
                  			 enterprise server region shutdown PLTSD runs in each process.
                  		  
               
- x'6dffffff' 
                  		  
               
- Clear screen transaction. 
                  		  
               
- x'fbbffbbe 
                  		  
               
- MQ listener transaction. 
                  		  
               
- x'fbbffbbf 
                  		  
               
- XA recover in-doubt transactions. 
                  		  
               
- x'fccffccf 
                  		  
               
- XA MFDS dynamic settings.