The user reports occasionally error when trying to edit a job's JCL using ESP ISPF user interface (CSF) line command EC or EJ. The error message is "Insufficient data".
Release : 12.0
The information related to EC or EJ is stored in the TRAKFILE. If the space in TRAKFILE has been overwritten by newer JOB, then the information is not available any more.
Need to increase the TRAKFILE by CYBESUT4 utility.