https://www.epo.org/en/node/i-received-email-alert

I received an email alert although there are no new Mailbox communications or procedural actions. Why?

You may also have selected the option Upcoming deadlines, in which case you will receive an email alert on each of the 14 days leading up to a deadline. If you perform a procedural action in MyEPO Portfolio, it will immediately be considered as having been performed. If you use other means, the procedural action will remain pending until your submission is processed by a formalities officer.

In this case you could still potentially receive email alerts inviting you to perform a procedural action after you have already performed it. For this reason, it may be better to activate the email alerts for upcoming deadlines when you intend to use MyEPO Portfolio – and not other means – to perform procedural actions offered in MyEPO Portfolio.