VD05 Billing block not displayed in sales order

Hello,

following Scenario seems to be strange:

If in VD05 a Delivery block is set, it is displayed directly if a new Sales order for this customer is created.

For the billing block it does not work in the same way. After Setting billing block in VD05 and creating a new Sales order, the block is not shown and also no warning message is coming up.

Maybe someone knows why delivery block and billing block through VD05 are appearing different in a Sales order?

thanks a lot