Reason for Variance in CO11N

Dear Sir :

In CO11N under quantities sub-tab "AFRUD-GRUND - Reason for Variance"  field is available. Is this field is for variation in qty alone. If so, where will we enter variation in activity e.g., My labor took 2 hrs to finish a job against allowed time of 1.5 hrs where the reason is "new to the process or any other".

Is it in REMARK space or any other specific field is available to solve the purpose.

Thanks With Regards,

Dinesh Kumar V.