How do clients actually pay an invoice in Kliently?

Clients pay from the client portal — the same magic-link space where they review proposals and sign contracts. When you send an invoice, the client gets an email link, opens the invoice, and sees a pay button for each method you've turned on.

There are no passwords and nothing to install. If you've enabled cards, they pay by card; if you've enabled UPI or bKash, those show up too. The moment the payment clears, the invoice auto-reconciles and its status updates, so you don't have to mark anything paid by hand.