How do i add a HSN number to be displayed on a bundle for the invoice?

Hi adithya-r-n-crea,

We're unable to assign an HSN number to a bundle since it belongs to the items that make up a bundle. 

A bundle doesn't work as an assembly item, wherein its components are used to build a new product, and will then have its own HSN. It's just a name given to a group of items for sale.

On the other hand, you have the option to show the components of a bundle on invoices to make their HSN numbers visible as well.

1. Click on the Gear icon.
2. Choose Products and services.
3. Double-click the bundle item.
4. Put a checkmark in the Display bundle components when printing or sending transactions checkbox.
5. Click Save and close.

Here's how your invoice will look like:

Speaking of invoices, you may want to check about customising the said form. It's a good way to put your company's taste to it.

I'm always here to help if you have other concerns about your invoice. Take care and have a good one.