Quality info records are used to manage the supplier relation in an organization. When there is continuous defect in the material supplied by a vendor, you can use quality info records to block a vendor.
When you create a purchase order, SAP system performs a check to find if a Quality info record is required and is available for combination of material and vendor.
Quality information record has to be maintained when you use the source inspection functionality that means a material has to undergo an inspection prior to the material reaches the plant for Goods Receipt.
You can set under Quality Info record that inspection is required when it is procured from vendor A and is not required if you procure from Vendor B.
