You can now mark a user trait as write-protected. Protected traits still appear in segmentation, personalization, and responses, but the client SDK and shareable feedback links cannot set or overwrite their values.
Use write protection when certain attributes should only be updated from Settings, your backend via Admin API, or other trusted server-side flows—while still allowing the trait to drive targeting and reporting.
Configure traits under Settings → User data → User Traits. See User Traits.