https://www.epo.org/en/service-support/faq/myepo-services/myepo-portfolio/mailbox/what-pct-link-and-how-do-i-set-them

What is a PCT link and how do I set them up?

If you are an international applicant or agent with international PCT applications for which the EPO is acting as ISA or IPEA, your company administrator can arrange for communications from the EPO relating to PCT applications to be delivered electronically to your Mailbox by setting up PCT Links. Your IP administration or docketing team will then be able to access these communications online and download them using the Mailbox area of MyEPO Portfolio.

See the MyEPO Portfolio feature guide - handling Mailbox communications, chapter 2.2, for more information on how to set up PCT links. 

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