Dear Experts, I created two extra fields one for cost category and other is for cost center but after selection of cost category when i select cost center it shows complete list of cost centers but i need when i select cost category it shows only particular cost centers related to cost category. please help me to resolve this issue. My code is [Field : MCCT] Use : Name Field Table : Voucher Cost Category VchExtract width : 18 Storage : udfMCCT Skip : If $$IsSysnameEqual:EndofList:$StockItemName then Yes Else No [Field : MCC] Use : Name Field Table : Cost Centre Table Show Table : Always Skip : If $$IsSysnameEqual:EndofList:$StockItemName then Yes Else No width : 18 Storage : udfMCC [System : UDF] udfMCCT : String : 21709 udfMCC : String : 21710 [Collection: Cost Centre Table] Type: Cost Centre Source Collection: List Of CostCentres Child Of: $$udfMCCT