TSS LIST(ACIDS) ZO(ZONE1) DATA(SOURCE)
receives:
TSS0252E KEYWORD NOT DISCERNIBLE - ZO
This command worked in the past.
LU11390 introduced the ZOWE resource class, so ZO can no longer be used.
A 3 character abbreviation must be used for ZOWE and ZONE.
Example:
ZOW and ZON, if you want ZOWE or ZONE respectively in the TSS command.