Every certificate you earn is gathered in My Learning, under Completed.
Open My Learning and click Completed in the left-hand column.
At the top you see three figures: Completed for the period, Certified — "with certificate issued" — and Learning time across everything you finished.
To see only the items with a certificate, use the Certified: All filter and switch it to the certified ones.
In the list, each item carries a green Completed label with its date and, where one exists, a Certified label with the date it was issued.
Open the content and click View certificate under the player, then download it as a PDF.
Tip
The period buttons in the top right — All Time, This Year, This month — change every figure on the page. Useful when someone asks what you completed this year.