OTL : Making timekeeper entry form partially editable

Hi All,

We have a requirement where we need to restrict the access of the timekeeper to modify certain data on timekeeper entry.

We have an interface which uploads the details through timestore API. This data should be non-editable ( read only ) to the corresponding timekeeper. Timekeeper should not be able to modify / delete existing entries for the employee for given timecard, but timekeeper can enter hours for certain special elements on timekeeper entry form and submit the timecard.

We thought of some options like forms personalization , keeping timekeeper entry form open for timekeeper but throwing error if timekeeper tries to edit data uploaded for any element other than special elements using time entry rules.