If there is an invoice missing, you can directly request it from your colleagues. Here's how it's done. You can also collect missing invoices and upload them by yourself.

1. Click on Accounting in the navigation menu on the left and go to the accounting dashboard.

2. Click on Collect missing invoices and go to the transaction page. Click on the plus icon on the right of a transaction in the list.

3. Click on Request invoice from someone.

4. Optional: Bundle multiple transactions in the request by clicking on Add transactions. Then insert the mail address from the person you request the invoice and click on Send.

5. The person will receive an mail with your request.

6. The person can reply informally to the mail and add the invoice(s) as attachment(s).

7. You will receive a confirmation mail once the invoice(s) has been uploaded.