Where do I find my invoice number?
Accounts and payments
The Invoice number can be found on the top right-hand corner of your invoice.
Moreover, you can conveniently download your invoices directly from your Zenn Software account. Here's how:
Sign in to your Zenn.com.
Click on 'Account' and then on 'Billing'.
Choose the invoice you want to see and click 'View Invoice'.
Your chosen invoice will automatically download in PDF format.