To prevent parents from changing approved student registration documents, you need to "lock" the registration. Many student management systems offer built-in features like "Finalize Submission" or "Approve and Lock" that set the registration to read-only for parents. If your system allows customization, you can implement a "status" driven workflow where an "Approved & Locked" status restricts parent editing permissions. For individual documents, consider version control or document archiving. If using a custom system, a database flag and corresponding application logic can disable editing once approval is granted, ensuring data integrity while allowing administrators to make necessary changes.
