The name of the pre-existing source credential which alias cred should point to. This should refer to the pre-existing source attribute which is bound to credential name.
The name of the service owning the credential. Example: stack-monitoring or dbmgmt
The source type and source name combination,delimited with (.) separator. This refers to the pre-existing source which alias cred should point to. Ex. {source type}.{source name} and source type max char limit is 63.
Monitored Resource Alias Reference Source Credential.