Which settings can be enabled on the header level of sales document copy control? Please choose the correct answer.

Which of the following organizational unit assignments are possible in the order-to-cash business process?
There are 2 correct answers to this question.

When the delivery document is created, the system can perform checks at item level to ensure compliance with the business requirements.
Which elements can be checked by the system? (3)

You need to ensure that an incomplete sales document CANNOT be saved. What must you do? Choose the correct answer.

Your sales document type has been configured with the following number systems:
- Number range internal assignment: 01
- Number range external assignment: 02
- Item number increment: 10
- Sub-item increment: 1
Which statements regarding the above configuration settings are correct? (2)