In Salsa CRM, you have the ability to add custom fields. A Custom Field is a user-defined field, with customer-defined values. Custom Fields can be added on both the Constituent (Individual and Organization records) and Donation screens, or you can customize an entire Constituent screen called My Salsa CRM.
Please refer to the section, Configuration & Security, and the article Custom Fields & My Salsa CRM Configuration for instructions.
Next Article: Emailing a Constituent