Sample process steps:
1) Activate split valuation
2) Create Valuation category as Q (Quality)
3) Create Valuation type as A, B, C and D
4) Assign valuation category to FG material
5) While post goods receipt against order (101 F), select the respective valuation type (A or B or C or D) based on the Quality Assurance team's decision
Please refer the config: Split Valuation