Bill-To Account Not Automatically Populated When Creating a Discount Order

Hi, how are you?

When issuing a discount order for a specific customer, we identified that the Bill-To Account field is not being populated automatically.

As a result, it is not possible to complete the discount order creation, as shown by the errors in the attached screenshot.

We believe this behavior may be related to the customer's original setup, which was created several years ago.

Could you please assist us in identifying the root cause of this behavior and advise on the best approach to resolve this issue?