special returns

Hi experts,

This is NOT kit sales. Plz advise whether the solution is proper?

Case: Sales order & its relevant documents only show material A and selling price occurs on it. 10pc of material A (finished product) is delivered (PGI). However, 2pc of material B (BOM of material A) is returned. Material B can be individually sold.

Solution:

No matter VF01 is performed or not, use material B to create returns order.

My concern:

Credit memo against material B may be created before invoice against material A. Then, customer A/R will firstly show credit. It seems a little odd.