Hard Hold Code Customer master in Sales order gets overridden when another code is manually entered

Hello,

I am facing a difficulty in managing hold codes for a particular cash customer.

We have cash customers like a window shopper, so we set hard hold HD for such customer in customer master.

So that any order that is entered should go on HD hold to make sure 100% payment is received.

So our customer service team, they enter the order they enter OH Hold, that is Customer service hold to make sure order is not gone for picking, or any amendments are expected from customer.

In this case when OH is entered in P4210 screen, HD hard hold is overidden and is not seen in F4209 or anywhere.