Added note about fence agent version req

Author: msftrobiro

articles/virtual-machines/workloads/sap/high-availability-guide-suse-pacemaker.md

@@ -637,6 +637,10 @@ Make sure to assign the custom role to the service principal at all VM (cluster
    >[!IMPORTANT]
    > The installed version of the *fence-agents* package must be 4.4.0 or later to benefit from the faster failover times with the Azure fence agent, when a cluster node is fenced. If you're running an earlier version, we recommend that you update the package.  
 
+   >[!IMPORTANT]
+   > If using managed identity, the installed version of the *fence-agents* package must be fence-agents 4.5.2+git.1592573838.1eee0863 or later. Earlier versions will not work correctly with a managed identity configuration.  
+   > Currently only SLES 15 SP1 and older are supported for managed identity configuration.
+
 1. **[A]** Install the Azure Python SDK and Azure Identity Python module.  
 
     Install the Azure Python SDK on SLES 12 SP4 or SLES 12 SP5: