The image illustrates the Nostro reconciliation process. The three debit transactions of thousand, two thousand and five thousand dollars from the Nostro accounts of Bank A shown on the left held with Bank B on the right. The interrnal and external entries for these transactions are reconciled automatically using a single rule Rule 1 that allows a tolerance limit of less than or equal to 50 dollars. The first two transactions pass the automatic matching of the transaction entries. The reconciliation of the transaction for 5000 dollars fails because the aggregation of external entries exceeds the tolerance limit of 50 dollars, as the service charge is 100 dollars.