Lack of currencies in ibexa.yaml brakes integration between corporate account and order management. The placed orders are not visible in customer portal and corporate account company (summary tab). For example, if user made orders in the EUR currency, we have to add this currency in ibexa.yaml file in this way:

system:
    default:
        product_catalog:
            currencies:
               -  EUR 

FYI:
Adding currencies under site won't work (the orders won't be visible in CA and CP).

 system:
     site:
         product_catalog:
             currencies:
                -  EUR 

NOTE:
I have added in attachment my ibexa.yaml file