Problem with milestone billing.

Question

Hello Experts,
I need your precious help on milestone billing.
When we create the contract system automatically determine Billing plan in sales order
When I check the order and I found that at header level system does not show Billing value but at item level system shows Billing value while creation of sales order and this is creating the problem we have other Billing Plan type but we don't face such issues.
User wants system should show billing value at item level and header level as well automatically.
When this issue came I provide the temporary solution and ask user to set the check box Header Billing Plan check box at item level and once we set this check box than system shows the net value at header level as well shown in below screen shots.
Once I set the check box Header Billing Plan exist at item level in Billing plan tab then system shows the Billing value/ net value in at Header level as well. as below.
I have provided  temporary solution but I don't have permanent solution user does not wants to set  check box Header Billing Plan  every time manually.
User wants, check box Header Billing Plan should be set by default so user no need to do any manual interruption in SO.
Kindly provide me your valuable inputs.
Thanks.

Answer 1

Hello Experts,
My issue is still pending for solution. Anybody can help me out.
I want to know the functionality of check box Header Billing Plan which is exist at item level Billing Plan tab (as shown in above pictures).
One I set this check box then only I can get the Billing value at header level (Billing Plan tab) as shown above.
Please help me out.
Thanks,