For Microsoft role-based certifications like Microsoft Certified: Azure Developer Associate, renewal works as follows:

1. Renewal method and window
   • The only way to renew is to pass the free online renewal assessment on Microsoft Learn.
   • The renewal assessment becomes available six months (180 days) before the certification expiration date and remains available until the certification expires.
   • The renewal window cannot be extended or reopened, and there are no exceptions, even if reminder emails were not received.
2. What to do now
   • Sign in to the Microsoft Learn profile.
   • Select the avatar (photo) → Profile → Certifications.
   • Look for a blue “Renew” button next to “Microsoft Certified: Azure Developer Associate”.
     • If the button is visible, the certification is still within the renewal window. Select it and complete the free renewal assessment to extend the certification by 12 months.
     • If there is no Renew button and the certification shows as expired, the renewal period is over.
3. If the certification is already expired
   • Once a certification expires, it cannot be renewed.
   • To regain the Microsoft Certified: Azure Developer Associate certification, it is necessary to earn it again by passing the required exam(s) for that certification.
4. About reminder emails
   • Reminder emails are sent only if an email exists on the Learn profile and communication terms were accepted, but email reminders are not required for renewal eligibility.
   • Renewal availability is determined solely by the certification’s expiration date and the 6‑month renewal window.
5. Future renewals
   • Role-based certifications like Azure Developer Associate expire after one year.
   • It is recommended to take the renewal assessment well before the expiration date to allow for issues such as medical emergencies, technical problems, or multiple retakes.

References:

• Frequently asked questions (FAQs) about renewal
• Certification process overview
• Microsoft Certified: Azure Developer Associate
• Credential retirement
• Not getting renewal option to renew my certification - Microsoft Q&A
• Is it possible to renew expired certificate? - Microsoft Q&A
• My Certification got expired a day before, can i still get renew link - Microsoft Q&A