OptionalexpiryOptionalexpiryThe date that determines the limit of consumption or use of a product. Its meaning is determined based on the trade item context.
OptionalmanufacturerProduction, packaging or assembly date determined by the manufacturer. Its meaning is determined based on the trade item context.
Expiry refers to the collection of dates required for certain items. These could be either expiryDate or mfgDate and expiryAfterDuration. These are mandatory for perishable items.