Roadmap

Clients can see their payments through the Payments page in a table though it would be useful if they could view/download the invoice/receipt from this table. I believe this can be pulled directly from the payment provider responsible for the payment?

More remarks:
I would suggest instead generating a PDF from the client's payment data and adding a configuration menu to customize the issued invoices (prefix, invoice number, autoincrement invoice nb, legal mentions in the footer, SaaS contact information, logo). The invoice should be available to the client and from the admin panel.