I changed a variable name in REDCap and the data was deleted. Can the data be recovered?

Data can be recovered by renaming the variable to its original name when the data was collected. You may be able to restore the variable(s) from the data dictionary if a snapshot exists prior to the variable name change. You can download a snapshot of previous versions of your Data Dictionary from the ‘Project Revision History’ tab.

Data Dictionary Snapshots & History