Replaces the login link included in the Auto Register email, which directs customers to log into their account.
<?php
/*
 * Plugin Name: Easy Digital Downloads - Auto Register Login Link
 * Description: Creates a custom email template for EDD emails.
 * Author: Easy Digital Downloads
 * Author URI: https://easydigitaldownloads.com/
 * Version: 1.0.1
 */

// replace the default WordPress login link in Auto Register email
function custom_edd_auto_register_login_link( $default_email_body ) {

	// replace http://yoursite.com/sign-in with the URL you want to send users to

	$default_email_body = str_replace(
		wp_login_url(),
		'http://yoursite.com/sign-in',
		$default_email_body
	);

	return $default_email_body;
}
add_filter( 'edd_auto_register_email_body', 'custom_edd_auto_register_login_link' );
To implement this snippet on your site, create a brand new, empty WordPress plugin and paste the above code inside.