In response, the CJEU clarified that the controller, when exercising the right of access to personal data, is obliged to indicate to the data subject, upon request, the exact identity of those recipients and not only the category of recipients. Such action is intended to guarantee the actual exercise of this right, which enables the exercise of other rights granted by the GDPR such as the right of rectification, the right to erasure ("the right to be forgotten"), the right to restrict processing, the right to object to processing, the right to a remedy in case of harm.
Exceptionally, in specific circumstances, the controller may not provide the exact identity of the recipients when it is not (yet) possible to identify those recipients or when the controller demonstrates that the request is manifestly unfounded or excessive. This is the case when, for example, the processing serves archival purposes in the public interest, scientific or historical research purposes or statistical purposes.