CSV Template

Copy paste as follows:
Do not change the headings:

This may be the Item’s Legacy Code in Streamline.

Alternatively, this may be your Customer’s own SKU (Go to the Customer’s Item Catalogue, Edit and populate).

NB: the Customer’s own SKU may also be displayed in the Customer’s Packing Slips (Delivery Notes) and Invoices. Distribution › Settings › Packing Slips
Finance › Invoices › Templates.

You must create these in
Customer › Edit Address.

Or Batch Edit › Customer Addresses display Customer Code Column.