Shipping variables

Hi @limetreefruits,

The error happens because WooCommerce’s shipping cost field doesn’t allow literal numbers inside brackets. The placeholder [qty] is the only bracketed value you can use.

To calculate shipping based on quantity, the correct format is:

7.50 * [qty] 

You should not use:

7.50 * [3] 

That will always trigger: “illegal character ‘[‘ ”.

If you need different rates for 1–3 items vs 4–8 items, you’ll need:

• Two separate shipping classes, or
• A shipping plugin that supports conditional rules.