1. Make sure you return data to the return (success) URL.
See: https://developer.paypal.com/docs/classic/paypal-payments-standard/integration-guide/paymentdatatransfer/
> Activating PDT
You can make sure, that it works, when you see some parameter in your URL like ?txn_id=XXX after a successfull payment.
2. The shortcodes for the emails, that can be used are:
- [txn_id]
- [payment_gross]
- [item_number]
- [currency_code]
- [payment_status]
3. Please look if the database table looks like this:
If not: Drop the table and reactivate the plugin.
4. If the flamingo database entry still does not get updated, please provide the success URL (after payment) to me. Also please send WP-Admin & FTP and we will look into your issue 🙂