Minimum Purchase Error

Product:Quantity:Price:Total:FE-C32 Acert Size - 12 1/2" Base Diameter X 15" Tall Cone1  (Error)$16.00$16.00FE-C9 Caterpillar C9, size - 7 1/6" diameter x 10.25" tall cylinder shape1  (Error)$13.50$13.50FE-3412- Caterpillar 3412, Size 19 3/4" Diameter x 9 7/8" Tall Strait Cylinder shaped2  (Error)$15.50$31.00(FE-C7) Caterpillar C7. Size, 7 1/16" diameter x 10 1/2" tall cylinder1  (Error)$13.50$13.50FE-C7 Caterpillar C7, size - 7.1/6" diameter x 10.5" tall cylinder shape1  (Error)$13.50$13.50FE-3516B- Caterpillar 3516B, Size 8 3/4" Base Diameter x 14" Tall Cone Shape1  (Error)$14.00$14.00(FE-190) Caterpillar 3126 Size, 7 1/2" Base Diameter X 10" Tall Cone1  (Error)$13.50$13.50Error => Minimum Purchase quantity of 6 units required of each product within the product group. (Rule ID = 541)