1. From your dashboard, hover over the left-hand menu. Place your mouse pointer here.
2. The tab should appear as illustrated below.
3. Click Settings.
4. Scroll Down, then Click Custom Fields
5. Click Deals
6. Add by clicking this button
Data Management: Deals - How to Add Custom Field
Custom Fields allow you to store additional information in your Deals beyond the default system fields. This helps you track specific data such as contract type, lead source, priority level, or any other information relevant to your sales process.