Trigger email on order custom status change in Woocommerce

Question

I've created a custom email class and added it to WooCommerce. When I go to the emails setting in WooCommerce I can see my template there and when I trigger it manually the email arrives at the target email account. Now I have the problem that I've added a action to my class which should detect the order status change and do my trigger function if the order gets set to my custom status:

add_action( 'woocommerce_order_status_wc-test-in-progress', array( $this, 'trigger' ), 10, 10 );

But when I change the order to this status I don't receive any email. Whats wrong here?

https://github.com/woocommerce/woocommerce/blob/master/includes/emails/class-wc-email-customer-on-hold-order.php

You can checkout this file. I've exactly did the same like in this file but replaced all triggers with my custom trigger on order status change.

Answer 1

Wen using woocommerce_order_status_{$status_transition[to]} composite hook, you just need to remove wc- from the status slug like:

add_action( 'woocommerce_order_status_test-in-progress', array( $this, 'trigger' ), 10, 10 );

And it should work.