Workflow not Getting Triggered for CATS.

Hi All,

I am tring to trigger the workflow WS123000111 with task TS12300097 PT_TIMEREQ, i am tring to do it through CATS,

I have assigned the task in CATS profile & selected the workflow option, but when i release & save the LEave request data system is not triggering the workflow.

At the same time when i use the workflow WS40001001 with TS40007901 it is working fine.

Is there any limitations involved in using different Tasks in CATS????

Why the above mentioned workflow is not getting triggered???

Please guide.