For documents that are published in the public portal, sponsors have the possibility to upload two versions, in order to protect personal data and commercially confidential information from publication (see article 81.4 CTR).
For these documents, a version can be uploaded 'for publication' in which data have been redacted, together with a clean version 'not for publication' that does not contain any redactions. The redacted version should be uploaded first, followed by the clean version. Only the 'for publication' version of documents will be made public in line with the timing of the disclosure rules. Most document types will never be published, these sections of CTIS therefore do not contain the option to upload two versions.
Please also refer to section 2.1 of the CTIS sponsor handbook of EMA.