Follow-up functions that support complaints against the vendor are (more than one answer is true):

Follow-up functions that support complaints against the vendor are (more than one answer is true):
A . Transfer posting of material from blocked stock to unrestricted-use stock
B . Finding the vendor of the material and assigning him or her to the notification
C . Transfer posting of material from blocked stock to inspection stock
D . Finding the purchasing document for the material and assigning it to the notification

Answer: BD