Hi Shyam,
This is what i currently have in System. a derivation rule is maintained in which the source fields are Asset Class, Cost Center. the derivation rule is maintained as follows:
Asset Class Cost Center = Fund Fund Center Commitment Item
XYZ ABC CAPEX 123-ABC 123-XYZ
Now when i create an asset in Asset Class "XYZ" i provide cost center "ABC" in time dependent tab. based on the cost center system derives the profit center. then when i post the acquisition of the same asset in f-90 when i give the system generated code of the created asset the system is not deriving any fund center or commitment item. here the system should read the derivation rule that if the asset against which i am posting an acquisition belongs to Asset class "XYZ" and contains Cost center "ABC" in time dependent Tab then Fund "CAPEX" Fund Center " 123-ABC" and Commitment Item "123-XYZ" Should be derived. But system is not deriving any thing. on the other hand if i manually provide fund center in asset master as well it derives the fund center but still no commitment item.