Do not send Woocommerce new customer email if a condition is true - wordpress

Question

If i add a new customer to Woo using the REST API i need to avoid sending the new customer email.
The REST API docs don't talk about this and there's no parameter to set that can prevent the "WC_Email_Customer_New_Account" email
I've tried about 10 different things, I'll list the most recent ones
Editing the Woo source directly class-wc-emails.php. Not even that works, because when i collect the user meta it's still blank and only has the user ID and nice name
Creating a plugin that checks an external API and if a condition is met does remove_action('woocommerce_created_customer_notification', array($email_class->emails['WC_Email_Customer_New_Account'], 'trigger'));
Processing everything inside the plugin but i have the same problem as 1.

Answer 1

I think I managed to pull it off. My goal was to create a user (customer) via WooCommerce REST API (Customers endpoint) and not to trigger the New Account email.
The first suspect is the woocommerce_email_enabled_customer_new_account filter. It gives us the \WP_User and \WC_Email_Customer_Completed_Order objects. The first idea obviously is to just run get_user_meta() against the user.
add_filter( 'woocommerce_email_enabled_customer_new_account', function( $enabled, $user, $email ) {
/**
* #var bool $enabled
* #var \WP_User $user
* #var \WC_Email_Customer_Completed_Order $email
*/
$isOurGuy = 'foobar' === get_user_meta( $user->ID, 'meta_key_is_so_meta', true );
if ( $isOurGuy ) {
return false;
}
return $enabled;
}, 10, 3 );
As it turns out, the REST endpoint handler can only push metadata after the user is created, and email notification is triggered implicitly via a hook in \WC_Emails(). It means when our code is running during that email hook, no metadata is available yet.
Next thing to check was to go to the moment before the user is pushed anywhere at all. That would be woocommerce_before_data_object_save, an action this time. It gives us two objects, \WC_Customer and \WC_Customer_Data_Store. The \WC_Customer object has our metadata, yay! Let's enclose the existing code into another handler.
add_action( 'woocommerce_before_data_object_save', function( $customer, $store ) {
/**
* #var \WC_Customer $customer
* #var \WC_Customer_Data_Store $store
*/
if ( !( $customer instanceof \WC_Customer ) ) { // I guess other object types may end up here, let's make sure we only get to work with customers.
return;
}
$isOurGuy = 'foobar' === $customer->get_meta( 'meta_key_is_so_meta', true );
if ( !$isOurGuy ) {
return;
}
add_filter( 'woocommerce_email_enabled_customer_new_account', function( $enabled, $user, $email ) use ( $customer ) {
/**
* #var bool $enabled
* #var \WP_User $user
* #var \WC_Email_Customer_Completed_Order $email
*/
if ( $customer->get_id() !== $user->ID ) { // Is it our guy?
return $enabled;
}
return false;
}, 10, 3 );
}, 10, 2 );
It still does not work. Because this is before object save, the user did not exist at the moment when we captured $customer into our scope. So $customer->get_id() returns 0 (zero). It seems that we overshot in time a bit - need to roll forward. woocommerce_created_customer seems like a good candidate. It gives us among other things the new user ID.
Let's compile everything together.
add_action( 'woocommerce_before_data_object_save', function( $customer, $store ) {
/**
* #var \WC_Customer $customer
* #var \WC_Customer_Data_Store $store
*/
if ( !( $customer instanceof \WC_Customer ) ) { // I guess other object types may end up here, let's make sure we only get to work with customers.
return;
}
$isOurGuy = 'foobar' === $customer->get_meta( 'meta_key_is_so_meta', true );
if ( !$isOurGuy ) {
return;
}
/**
* Hook into the Customer Created event to capture the new customer ID.
*/
add_action( 'woocommerce_created_customer', function( $customerId ) {
add_filter( 'woocommerce_email_enabled_customer_new_account', function( $enabled, $user, $email ) use ( $customerId ) {
/**
* #var bool $enabled
* #var \WP_User $user
* #var \WC_Email_Customer_Completed_Order $email
*/
if ( $customerId !== $user->ID ) { // Is it our guy?
return $enabled;
}
return false;
}, 10, 3 );
}, 1 ); // NB: Email is also hooked here with priority 10.
}, 10, 2 );
Now let's recap. We hook into the data store and capture the moment a \WC_Customer object is saved. We perform custom metadata-based logic to decide whether to proceed. Then we skip to the moment when the user is created to retrieve their ID. Then we hop a little further in time during the "email enabled?" check to actually disable the notification for the given user.

Answer 2

Try this
Go to:
WooCommerce -> Settings -> Email tab
You can find the Options are "New account". Click the manage button.
Uncheck the "Enable this email notification".