Restrict Worker from updating Performance Document Start & End Dates

Summary
Worker is able to edit Performance Document Start & End Dates

Content (please ensure you mask any confidential information):

Navigation :- Me > Career and Performance > Performance > Select Document

Expand Document detail section on top and click on edit. From Date and To Date becomes editable.

Need to restrict Employee and Line Manager to update these dates. This should be read only. How we can achieve this?

Version (include the version you are using, if applicable):

24B

Code Snippet (add any code snippets that support your topic, if applicable):