Trying to access ACF value in functions.php, in woocommerce_email_order_details action

Question

I have a Wordpress installation with Woocommerce and I added a ACF field to the orders. It's called 'booking_reference'.

Inside my functions.php file, on checkout I update the 'booking_reference' custom field. It gets saved to the database. All is working as it should.

In my next function i'm trying to email this custom field to the customer. I use this code:

$order_id   = $order->get_id();
$reference_number_acf_order = get_field('booking_reference', $order_id );

When I echo $reference_number_acf_order, it's empty. The $order_id variable is correct. It contains the order correct order ID.

The rest of the email to the customer is correct, it contains data from the order. Only the ACF value is empty.

Answer 1

Are u using WP_Query() or something like in your new function?

If so. try calling wp_reset_query(); first:

wp_reset_query();
$reference_number_acf_order = get_field('booking_reference', $order_id );