PSWDC= parameter for procedures

Use the PSWDC= parameter in procedure to specify whether mixed-case passwords are supported. Valid values are M, U, and R. The default is R.

The possible values are:

M
IMS supports the use of mixed-case passwords. If you intend to support mixed-case passwords, be aware of this support wherever you manipulate passwords, such as in exit routines.
U
IMS forces all password to uppercase.
R
IMS uses whatever is defined for mixed-case passwords in RACF®. If mixed-case passwords are active in RACF (which is done through the SETROPTS command) then IMS uses it. If mixed-case passwords are not active in RACF, then IMS uses uppercase passwords. Whenever there are changes to the mixed-case password definition in RACF, IMS adjusts without requiring a restart. R is the default.