Hello Ameya,
I have no idea how you have maintained your routing activities. If you have labour activity included in routing then you can post it through CO11N. In that case you have no need to post the CAT2
CAT2 is to post only the manual labour hrs for Personnel Number.
You can eliminate labor activities from routing and use CAT2 or use CO11N and book the labour hours and don't use CAT2.
Best Regards,
R.Brahmankar