Klaviyo uses Gravatar to set profile pictures that appear beside your account name in the app. By default, this image will be the first letter of your first name.
How it Works
Gravatar is the third-party platform that allows you to create an account and add various profile information, such as a profile picture. This information is publicly available on the web and can be used other software. When you create an account with Klaviyo, we use the email associated with your account and automatically look for an associated Gravatar account. If we find one, we populate your Gravatar profile picture into your Klaviyo account.
Click on the profile icon in the upper right-hand corner and drag in the photo you want to use for the account. Click Change My Photo. There will be a small delay for Gravatar to sync to your Klaviyo account, but within 30 minutes, you should see the change reflected in Klaviyo.