The ledger settlement is one of the main tasks performed by General Ledger accountant during monthly closing process, this function settle a ledger account transactions debit against credit, against debit. It is mostly used with clearing accounts, accruals accounts; its effect shown in ledger account transaction list only shows the unsettled transactions.
Under General Ledger Module->Periodic->Ledger Settlements.
Include the debit, and credit amount, then accept it this will settle the amount, it could be excluded as well.
MS Dynamics AX 2012 Ledger Settlement
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