Starting on June 23rd 2022 certificates are exclusively for Plus members. If your courses were purchased before the 23rd June 2022, the certificate will still be available to be downloaded once you complete the courses.
If you're a Plus member, when you finish a course and have marked all of its units as completed, you can obtain a certificate of attendance. It is also included in the accesses purchased through Domestika for Business.
Please remember that the certificates have no expiration date: once you have obtained them, they are yours forever!
For more information, you can review the following articles: