FB1SL - Clear - Specific to Ledger Groups

Dear All,

Trying to use the transaction FB1SL to do the clearing specific to a ledger.

The GL account has the necessary tick in its master data as shown below.

While exexuting the transaction, getting the following warning message -

No Open items were found. Message No.F5170.

What can be the reason? Please advise.

Thanks & Best Regards,

Gov