Hello there,
Within 30 days notice, for CES environments, you shall receive a notification from TAC to request your authorization to renew this certificate. Once approved, CES team along with TAC will work in renew the certificate.
If you do not receive such notice, you may contact TAC and request your certificate to be renewed.
Hope this helps.
Cheers.
José L. Dávila
José L. Dávila