There is no change between R17 and R19 on how the authorization works for
So for cancelling Threads it is the Userid in TT attempting to cancel a
thread needs authority to the Plan.
The Userid of the Xmanager Started Task also needs access to the plan but for other
So things to check
The message is saying PLAN PTTFPL19
Check that PTTFPL19 plan is bound to the DB2 you are trying to cancel the thread for.
Also check the PLANSxx member of the product CDBAPARM dataset, where xx is the suffix that
you use and is pointed to by whatever PTISYS member being read.
To make sure what plan name you have specified for PTTPLN03 which is used for Terminate Threads.
Each specific user trying to terminate threads needs execute authority for the Plan
pointed to by PTTPLN03.