The maximum number of data sources that a DPM server can protect is %MaxDataSources;. If you exceed this limit, DPM server ...

The maximum number of data sources that a DPM server can protect is %MaxDataSources;. If you exceed this limit, DPM server will miss its backup SLA and eventually it may become unresponsive. You are currently protecting %NumDataSources; data sources on %DPMServerName;.