If you have received a payment from your client and want to mark an invoice as paid, follow the steps below:
1. Go to the 'Invoicing' and click on it.
2. You will find a list of invoices. Open a 3 dots menu of an invoice you want to mark as paid and click on 'View.'.
3. Now click on 'Actions' on the top right side of the page to get more options.
4. Now click on 'Mark paid.'
5. Then enter the payment record by giving payment details and press 'Submit' to complete the process successfully.