You do not have access to delete tasks.
Check whether the security feature in CA MSM is enabled, and perform one of the following actions:
If the security feature is enabled, verify that the following resource profiles are created:
Grants access to delete a user's own tasks.
Grants access to delete any tasks.
Note: For more information about resource profiles, see the Administration Guide.
When the option is set to N, users cannot delete completed tasks.
To set the option to Y, update the sysTaskDeleteOverrideEnabled setting in the RunTimeMVSHLQPrefix.SAMPLIB(DBINIT) member.
Note: For more information about updating settings in the RunTimeMVSHLQPrefix.SAMPLIB(DBINIT), see the Administration Guide.