The system allows you to Lock a CRF/Visit which has a Signed status (except for CRFs/Visits that have Removed and Signed statuses)
Only data managers can Lock data.
After you Lock a CRF/Visit:
- You can: view or remove a CRF
- You cannot:
- Edit or add new data into CRF
- Verify data
- Sign data
- Work with Note and Discrepancy
Lock a CRF Manually
Go to a CRF which is Signed and not Locked → The system displays a Lock button.
After you Lock successfully, the CRF has a 
icon next its status.
When all CRFs in a Visit are Locked → the system automatically changes the status of the Visit to Locked.
Lock a Visit Manually
Go to a Visit which is Signed and not Locked → the system displays a Lock button.
After you Lock a Visit successfully, its status is updated to Locked () and all CRFs in this Visit are also Locked.