Credit management check for outstanding value due not working

Hi everyone,

Below are my configurations to block sales order creation if there's outstanding value due:

1.Customer payment terms: 0001 Payable immediately due net

2.Under "Change View "View for Maintenance of Automatic Credit Control": Detail"

I've checked Open items and Oldest Open Items

(please refer attachment)

However, the issue that I faced is that it does allow sales order to be saved although there are open items/unsettled outstanding amount, which can be checked in tcode S_ALR_87012174 - List of Customer Open Items.

Can anyone share their experiences on this matter?

Thank you,

Regards,

Anthony.