How do you add Notes from Buyer to a packing slip?
To add the Notes from Buyer to your packing slip, you just need to add the [Notes from Buyer] field replacement to your packing slip template.
How and where you add that to your template HTML is up to you. If you just want a simple paragraph in your packing slip footer section you could do this:
<p align="left">Buyer Notes: [Notes from Buyer]</p>
Here is how that looks in the footer section of the default template:
and here is how it would look on the packing slip itself:
Hope that helps!