mwhiteley16

// Prevent checkout if offer already purchased
add_filter( 'edd_can_checkout', 'wd_limit_purchase' );
function wd_limit_purchase(){
	$user_id 		= get_current_user_id(); // Get the current customer's ID
	$downloads 		= edd_get_users_purchased_products( $user_id );// Get all of the products the customer has purchased in the past
	$can_checkout 		= true; // Allow checkout for now

	if ( ! empty( $downloads ) ){ // If the customer hasn't purchased anything before we don't need to go any further.
		foreach ( $downloads as $download ){ // Loop through each product the customer has purchased before.

adriannees

<?php 
// Add this to the functions.php file on your child theme

/** Limit download purchases to one per account
  * HT to Scott Deluzio for original code this is modified from https://scottdeluzio.com/easy-digital-downloads-limit-one-per-customer/

// Give nag message if customer has bought download previously
add_filter( 'edd_can_checkout', 'sd_set_purchase_limit' );

function sd_set_purchase_limit(){