Infusionsoft + Event Espresso 4. Do not send a product sku when adding/updating events & tickets

is_no_sku_for_you.php

<?php
//* Please do NOT include the opening php tag, except of course if you're starting with a blank file

add_filter(
    'FHEE__EEE_Infusionsoft_Ticket__sync_to_infusionsoft__product_data',
    'my_do_not_send_a_sku',
    10,
    2
);
function my_do_not_send_a_sku($product_data, $ticket) {
    $product_data['Sku'] = '';
    return $product_data;
}