Use GL Open Item Reconciliation (25.15.2.13) to reconcile the outstanding balance of a GL open item account with the underlying transaction details. The outstanding balance is the sum of the unmatched transactions on the account. After matching debit transactions with credit transactions, the remaining unmatched transactions reflect the true account balance.

GL open items are typically used for posting accruals; for example, insurance costs for an entire year, broken down into monthly values.

For GL open item accounts, the system tracks matched and unmatched items in a GL open item sub-ledger. The identifier used to mark and link related transactions is called an allocation key. Through the use of allocation keys in GL Open Item Reconciliation (25.15.2.13), debit and credit transactions can be matched and reconciled.