Posted by 
When a new DX.TRADE is input, here’s the list of files updated(*):
FCUS.LIMIT
FCUS.LIMIT.ACT
FCUS.LIMIT.TXNS
FFIN.ACCOUNT
FFIN.DX.ACCT.ENTRIES
FFIN.DX.COB.WORKFILE
FFIN.DX.COB.WORKFILE.HISTORY
FFIN.DX.COMMISSION.DIAGS
FFIN.DX.ITEM.STATUS
FFIN.DX.REP.POS.ACT.HIST
FFIN.DX.REP.POS.ACTIVITY
FFIN.DX.REP.POS.HIST
FFIN.DX.REP.POS.LAST
FFIN.DX.REP.POSITION
FFIN.DX.STRATEGY.LINK
FFIN.DX.STRATEGY.NEXT.ID
FFIN.DX.TRADE$NAU
FFIN.DX.TRANS.KEYS
FFIN.DX.TRANSACTION
FFIN.DX.TXN.ACT.CUST
FFIN.DX.TXN.ACTIVITY
FFIN.ENTRY.HOLD
FFIN.POS.MVMT.TODAY
FFIN.POSITION
FFIN.POSITION.TABLE
When the trade is authorized, below files are updated(*):
F.DE.O.HANDOFF
F.DE.O.KEYLIST
FFIN.ACCT.ENT.TODAY
FFIN.CATEG.ENT.TODAY
FFIN.CATEG.ENTRY
FFIN.CONSOL.ENT.TODAY
FFIN.DX.DAILY.TRANS
FFIN.DX.SAVE.COMM.DIAGS
FFIN.DX.TRADE
FFIN.DX.TRANS.BALANCES
FFIN.STMT.ENTRY
FFIN.TRANS.FWD
(*) Because T24 makes a distinction between CUSTOMER files and FINANCIAL files, you will have a different file prefix, respectively FCUS and FFIN.