How to add the first name of a customer on a notification template

Greetings

I customize my automatic notification templates, and i want to add the {{ customer.first_name }} object in the template, but i noticed that in some templates this liquid object does not work, does anyone knows why?

Thanks in advance!

Hi,

I believe Shopify`s guide into customer object will give you bit more insight into this:

https://shopify.dev/docs/api/liquid/objects/customer