reconciliation

hello experts

My company is using sap b1 2007 B pl 18 . currently we are using manual external recociliation the problem which we are facing is the current balance in our sap account is different then our current external bank account balance. this is maily because the checks we have given to banks in which some of them yet not cleared on that particular date. so is there any functionality such that while making incoming payment it donot effect our sap account so when ever we get confirmation from external bank that particular check is cleared then only it affect the accounts .

thank u in advance

Regards

Saurav Gupta