/** * Delete an Invoice from InfusionSoft */ private function _delete_infusion_invoice($invoiceId) { // Add or Get buyer from InfusionSoft require_once app_path() . "/libraries/infusionsoft/isdk.php"; // Add InfusionSoft Library $isapp = new iSDK(); if ($isapp->cfgCon("comissionTracker")) { $result = $isapp->deleteInvoice($invoiceId); return $result; } }