There are several possibilities:
- Your Feedback Release Date is set before the Start/Opening Date.
You receive an error similar to:
Turnitin assignment could not be created.
Sorry, we could not process your request.
date_post - post date must be after start date
You can rectify this by editing the Folder Open Date in IVLE to an earlier date (not more than one year before the current date). - Check the Accessible To setting in the folder's settings in Files.
Check the options as necessary. - If you are using PeerMark, your Feedback Release Date for the PeerMark assignment is before the Feedback Release Release Date of the assignment folder.
You can rectify this by editing the Feedback Release Date of the assignment to just after normal submission closes.
If none of these are the cause of the students' access issues, please refer them to the I cannot upload to Turnitin FAQ.