Add an option to add tracking url to tracking number field. We currently write it back to the warehouse instruction field.

Two reasons for this request:

We use the Warehouse Instruction field for noting specific pick/pack instructions for the distribution team.

We send the tracking number back to our customer systems, such as Shopify, where the link can be clicked on to take customers to the correct tracking website. The Shopify default tracking website is USA-based and does not recognise NZ Post tracking numbers.