# Session Manager - Certificate renewal
In the last few days, we have received multiple emails from Avaya for alarm OP\_MMTC20048 in our Session Manager 8.x, this is the information included in the email:
After verifying the System Manager those alarms can be found in (as shown in the image below)
***Services -> Events -> Logs -> Log Viewer***
Then applying the Event ID = OP\_MMTC20048, all alarms are related to identity certificates used by Session Manager for different services:
With all the previous information let’s the identity certificates in that Session Manager, navigate to
***Services -> Inventory -> Manage Elements***
Then with the IP address or name select the Session Manager and click on
***More Actions -> Manage Identity Certificates***
In the next page it displays the ***Valid To*** information (when certificate expires)
To renew the certificates, select one by one each entry and select the renew button, this is not a service impacting but changes will be applied until Session Manager is rebooted (apply the renewal under a maintenance window to renew all certificates and reboot).
