1. Begin by navigating to the Audience from the top right menu

2. Select the specific subscriber you want to add a custom field for

3. Click on the +Fields option.

4. Label your custom field and assign the desired value

5. Hit the Save button, and you’re all set!

Now, your contact is equipped with the custom field you’ve created, allowing you to gather and organize valuable information tailored to your needs. It’s that simple!