funds management at PR level

Hi all,

My client wants to control stationary and sanitary items in their organization.So they are insisting to create material master and valuation class accrdingly.But we have recommended Funds management will help in controlling their expenditure on these items.

We have advised for budgt exceed message at PR level.Is there any prerequisites for FM at PR level.

Please help me if anybody came across same issue.

thanks

Deepa