In the outbound delivery document, what information can be found only in the item?

In an outbound delivery document, the item level contains specific information that pertains to the characteristics of individual items being shipped. The plant is a fundamental data point that indicates the location where the items are stored and from which they are being shipped. This information is crucial at the item level because different items in the same delivery can originate from different plants, especially in scenarios where inventory is managed across multiple locations.

While other options like customer unique identifier, shipping instructions, and delivery date might relate to the overall delivery or order level and are not specific to individual items, the plant provides essential operational insight specific to each item included in the delivery. This distinction emphasizes the operational logistics involved in the storage and transportation of goods within SAP S/4HANA.