Lets say we have agreements with our supplier for PPM 250. Usually PPM shows how many defective parts we get referring to 1 million parts.
But what if supplier send us components which includes some completely "wrong" parts (not defective but completely wrong parts- differents shape etc). To simplify question: if I order one million bolts and this batch also contains 100 nuts, then is it take in account as PPM? Problem is that wrong parts are ruining our automated assembly line. Supplier don't see problems as they say that this is included in PPM and as long PPM is not exceeded, everything is fine.
But what if supplier send us components which includes some completely "wrong" parts (not defective but completely wrong parts- differents shape etc). To simplify question: if I order one million bolts and this batch also contains 100 nuts, then is it take in account as PPM? Problem is that wrong parts are ruining our automated assembly line. Supplier don't see problems as they say that this is included in PPM and as long PPM is not exceeded, everything is fine.