Users imported by webhook will have usernames generated from their first and last names, instead of email address

wpf-use-names-as-logins.php

<?php

// Use first name and lastname as the username

function wpf_use_names_as_logins( $user_meta ) {

	$user_meta['user_login'] = strtolower( $user_meta['first_name'] . $user_meta['last_name'] );

	return $user_meta;

}

add_filter( 'wpf_import_user', 'wpf_use_names_as_logins' );

// OR
// Use a random number after the first name as the username

function wpf_use_names_as_logins( $user_meta ) {

	$user_meta['user_login'] = strtolower( $user_meta['first_name'] ) . rand(10, 1000);
	
	return $user_meta;

}

add_filter( 'wpf_import_user', 'wpf_use_names_as_logins' );