WISEflow uses Urkund or Ephorus (depending on the licence), to check the submitted papers for plagiarism. The papers will be tested to see if they contain passages of text that also appear elsewhere (internet, library databases, papers handed in by others etc.).
You cannot opt out of the plagiarism check. However, it is possible for the author of a paper to define whether the plagiarism service is allowed to check if material in the uploaded paper is used for plagiarism elsewhere.
That is, if passages of text have been copied from one's response into a new responses submitted by anyone other than oneself.
If you want assurance that your paper cannot be plagiarised, you can choose not to include it in the document pool on the flow page of the specific exam, the day after the submission deadline. In some cases, you will also receive a receipt directly from Urkund where the possibility to opt-out is also available.
Note: This will not prohibit other papers on the flow from being checked for plagiarism against the paper or your paper from being tested for plagiarism.