You can adjust the details of an existing contact at any time – for example to add an email address or correct a name.
1. Open and edit the contact
Open the Contacts area (contacts icon in the top bar) and click the contact you want in the list. Its details appear on the right. There, click edit contact.
2. Change the data and update
The Update Contact dialog opens. Adjust the first name, last name, notes or – via + More – further fields. Then click Update. The changes are saved.