What determines the sequence in which materials are planned during the material requirements planning (MRP) run?

Your purchasing department is working with scheduling agreements. What can you do using release creation profiles?
There are 3 correct answers to this question.

You are posting a goods receipt without a corresponding purchase order (PO) in the system. Which of the following are prerequisites for automatic generation of the PO at the time of goods receipt?
There are 2 correct answers to this question.

In which sequence does the system search for a valid source of supply when you manually create a purchase requisition with automatic source determination?
Please choose the correct answer.

In your project, pricing conditions in purchase orders should only be visible to certain users. What must you configure and assign?