CPO1283E System system name and sysplex sysplex name is not unique
Explanation
The ACTIVATE DEFINEDCAPACITY or DEACTIVATE DEFINEDCAPACITY command has been issued specifying the referenced values for the SYS and PLEX parameters. Multiple LPARs in the domain configuration run systems with the referenced name. This means the LPAR for the command cannot be uniquely identified. The command is ignored.
User response
Specify LPAR and CPC parameters with the command to uniquely identify the LPAR to be changed and retry the command.