As per the Stock and Traceable Analysis the Delivery analysis screen allows you to setup up to 20 custom analysis codes that can be recorded against Delivery Notes and/or Picking Lists. These could be used for recording additional information against a Delivery Record, or for sorting, reporting, and grouping delivery note/picking list records.
This area of the Delivery Analysis Settings functions in the same way as the Stock Analysis above, please refer to this section for further details.