In many cases you would not want your surveyor to have the ability to modify completed interviews which have not yet been synced.
This property can be enabled/disabled per survey.
In order to disable this option please follow these steps:
1. Open the survey designer in the STG studio.
2. Navigate to the survey properties tab:
3. Enable the 'Do not allow to modify (completed results)' property:
4. Save the survey.
Please note: In order for the changes to take effect on the device the surveyor needs to 'sync surveys'.
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