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4.3 Bulk data deletion

You can delete multiple rows of data at once, that is, multiple submissions to a form or dataset. You can specify which submission(s) is/are to be deleted, yet only on the basis of the following two criteria: the date of collection, or the unique identifier (key) of each submission.

Deletions from the server are permanent, it is not possible to recover deleted data.

Tutorial on Deleting bulk data