How can we ensure that employees can’t add private goals?

Use Visual Builder Studio to hide the Private goal checkbox.

1. Edit the New Goal page in Visual Builder Studio.
2. Select a project.
3. In Express mode, click the Configure Fields and Region button.
4. Expand the Form Rules region.
5. Add or edit a Regular form rule and give a suitable name and description.
6. Ensure that the rule is active.
7. In the Regions and Fields section, expand Goal Details.
8. Expand the performanceGoalsV2 resource.
9. Locate the Private field and set its Hidden property to Hidden.
10. Preview your changes and publish.