Product change notification

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A product change notification (PCN) is a document issued by a manufacturer to inform customers about a change to a mass-produced product or its manufacturing process. In the semi-conductor industry, the JEDEC standard J-STD-046 describes the requirements for product change notifications and examples of types of changes that should be notified.[https://www.jedec.org/node/8587 Customer Notification Standard For Product/Process Changes By Electronic Product Suppliers (Login required)]