Scrum Alliance® certifications are renewed on a two-year basis. If your certification has expired, you are still able to renew it successfully after the expiration date. If you renew past the expiration date, your certification will be extended for a full two years from the date that you pay to renew (vs. from the original expiration date.)
There is also a three-month grace period after your certification's expiration date to still access your member benefits, such as our Learning Journey courses.