Hi! Maybe somebody knows how to create blacklist for customers, who didn't send money. My product is downloadable and customer should getting serial number only when I got money on my account.
My idea to automate this process. Create few steps:
1. From the begging all customer in a blacklist.
2. If my bank sen me email, transfer email to DB.
3. Once per day recognize if customer is paid and send email with s/n.
This is idea, but maybe somebody already knows how to ...?
Thank you very much.