Request from a project leader that it would be good to have automated email reminders sent in advance to warn them that there are upcoming milestones due for submission through the portal.
Many are used to working to a March 15th date for progress reports and sometimes forget the due date of milestone reports under the new system (project on track, but forgetting reporting due dates). having an automated email that is sent a month or so in advance of the milestone due date would assist them with ensuring that they could prepare and submit their milestone reports on time.
Perhaps it could be an opt-in tick box if not everyone wanted these, and for projects where this might not be suitable (e.g. for some of the older projects, and projects in that currently have a financial report milestone that is not a contractual requirement), but could be useful for the newly contracted ones.