Employees are able to edit any benefits objects by clicking details link under Active benefit enrollments section
Clicking the highlighted icon gives you edit permission on that object
SuccessFactors Employee Central
Providing proper permission will resolve this issue
Navigate to respective object definition--->Scroll down--->Set the value in Secured field as YES and set Permission Category as "Miscellaneous Permissions"
Now Navigate to Manage permission roles--->Choose respective role-->Miscellaneous Permissions--->Choose Object and then set the permissions as required
Benefits details link Employee edit benefit Benefit ESS permission , KBA , LOD-SF-EC-LOC , Localization & Country Specifics (EC Core) , Problem