Hi,
As per definition of credit limit, there is no involvement of check in credit limit calculation.
Remaining Credit = Credit Limit - Account Balance
But as per definition of commitment limit,
Remaining Commitment = Commitment Limit - [Account Balance + Un-deposited Collections + Deposited (Postdated) Cheques]
Please refer SAP note 898665 - Credit limit and Commitment limit
Thanks & Regards,
Nagarajan