Variant conditions disappear when I pass external order number

Hi Guys,

I am facing one really weird issue. I have a quote with configurable materials. I am creating a sales order with reference to this quote and passing order no externally. In create mode before passing the sales order no externally, if I check the variant conditions they are all look fine. I can also see the variants in pricing analysis as well.

But the moment I enter external order no, the variants disappear. If I go and check the variant determined in pricing analysis, it shows me nothing.

If I save this order, it gets saved without variant pricing. The class already have a characteristic with SDCOM-VKOND reference.

I don't face this issue if I let the system to assign internal number to the order.

Can you please help me understand what could be the issue?

Thanks...

Regards,
Tushar