How do you sell products online without bills/invoices (kacha maal)? le that whe

Hey everyone, I’m exploring online selling (like on marketplaces or my own store), but I’ve got a question for those who sell products that don’t have proper purchase invoices — like imported items or stuff bought locally in cash (aka kacha maal without GST or tax bills).

How do you handle that when it comes to listing, taxes, or dealing with platforms like Amazon, Flipkart, etc.? Do you guys create your own bills, or is there a workaround?

Would love to hear how others are managing this — especially those who’ve been doing it successfully without getting into compliance trouble.

Thanks in advance!