woocommerce_registration_error_email_exists filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_registration_error_email_exists', 'filter_function_name_5535', 10, 2 );
function filter_function_name_5535( $__, $email ){
	// filter...

	return $__;
}

$__

-

$email

-

Where the hook is called

return new WP_Error( 'registration-error-email-exists', apply_filters( 'woocommerce_registration_error_email_exists', __( 'An account is already registered with your email address. <a href="#" class="showlogin">Please log in.</a>', 'woocommerce' ), $email ) );

Where in WP core the hook is used WooCommerce