Dear All, I am new in Tally TDL. I can add a Button in Tally Day Book Report using the following code.But i don't know how to filter the daybook using its costcenter. Any body can help me , please correct my code. [#Form: Day Book] Add : Button : MyCCenterFltBtn [Button : MyCCenterFltBtn] Action : Execute : MyCCenterFltRep Title : $$LocaleString:"Chg CostCenter" Key : Alt + F3 ;InActive : $$CmpUserLevel Not = "Owner" [Report : MyCCenterFltRep] Form : MyCCenterFltFrm Title : $$LocaleString:"Select Cost Center" [Form : MyCCenterFltFrm] No Confirm : Yes Part : MyCCenterFltPrt [Part : MyCCenterFltPrt] Line : MyCCenterFltLn1 [Line : MyCCenterFltLn1] Field : Medium Prompt, NameEntered1 Local : Field : Medium PRompt : Info : "Choose CostCenter" [Field : NameEntered1] Use : Name Field Table: CostCentreColl ShowTable: Always Variable : MyNameFld Modifies : MyNameFld [Variable : MyNameFld] Type : string Persistent : No [System : Variable] MyNameFld : "" [Collection: CostCentreColl] Type : Cost Centre Fetch : Name [Collection : MyVouchers] Type : Voucher Fetch : *, LedgerEntries.CATEGORYALLOCATIONS.COSTCENTREALLOCATIONS.* [#Collection : Vouchers of Company] Add : Filter : FeedDateFilter [System : Formula] FeedDateFilter :