Go to PMI's Continuing Certification Requirements System (CCRS) web site at:
https://ccrs.pmi.org/Certificants/ClaimPDU.aspx
Log in using your PMI username and password
Click on Report Professional Development Units (PDUs) on the left side of the screen
For the remaining steps please refer to http://www.pdu-courses.com/Claim-PDU-on-PMI-website.shtml