Credit check hold for multi currency

Dear Experts,

I am facing issue in credit check hold for multi currency.

We have done below setup

1. AR: Credit Limit Selection = MULTI

2. Credit Checking Rule has been set at Order header Level.
3. Conversion Type is selected as Corporate
4. In exposure tab we did not select Use Pre-calculated Exposure but selected Include Open Receivables balance, Include Uninvoiced Orders and Include orders currently on hold.

5. Credit Usage Rule, set Name as : All Currency
 Usage Type : Currency
 Currencies : All Currencies
6. Credit Profile is defined at Operating unit level for the Currency SAR (Saudi Riyal with amount 100 SAR).
7. Assign Credit Usage Rule
 Credit Profile Type = Operating Unit Default