In Cash Management, Bank Statements Loaded, Imported and Reconciled, but for the AP Transactions bank accounts there are few statement lines that are in unreconciled status and few are in reconciled status.
IN bank statement line the Error code was : No matching payment, No matching Open Interface transactions, No matching payment batch,
1) please check whether you are using the correct bank statement for reconciliation in case if you have multiple bank accounts / Statements.
2) Check whether the payments that were unreconciled were all functional currency or foreign currency payments ...in which case exchange rates might be causing this ..
References:Autoreconciliation Execution Report Shows Exception No Matching Payment Batch [ID 166716.1]
Autoreconciliation Has No Matching Payment and No Matching Payment Batch Errors for Foreign AP Payments [ID 1387334.1]