Go to the OpenClinica Configuration page of the study for which you wish to delete the study mapping. Click on 'More' → Delete Data.
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You will get a popup like below where you will need to confirm whether you wish to delete the existing data in the protocol.
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Once you click on the ‘Yes' on the above popup, study data will be deleted, and you will get a notification '<add notification>’.
Study data before deleting
<Add SS>
Study data after deleting
<Add SS>