1. Click "Clients" in the main menu.
2. In the top-right corner, click "Add client".
3. Select the client type: "Company" or "Private individual".
   Enter the client information. Some details are mandatory:
   - Company information: enter relevant information about the company.
   - Contact person: add details of your primary contact at the client.
   - Invoice recipient: specify who should receive and process the invoices.
   - Language settings: choose whether invoices to your client should be sent in Swedish or English.
4. Choose whether the invoice should be emailed as a PDF file (the default) or sent as an electronic invoice.
5. After entering all the information, click "Add client" to save.