Why am I getting error message ISPP121 on panel C1SE7000?
The ISPP121 error is stating that the panel definition is too large, it is greater that the screen size. The first item to check is what terminal model you are running. Panel C1SE7000 has been modified and will no longer run using mod-2; upgrading your session to be using mod-4 or greater will resolved the problem.
But if you for various reasons you cannot upgrade to run with mod-4 there are the following PTFs that will reset you panel to be able to run with mod-2.
V18 – RO90250