SAP Notes 
You can link your change transaction or message to SAP Notes in the SAP Notes assignment block.
Features
You can add and remove SAP Notes.
You can search for SAP Notes in various ways:
In the SAP Solution Manager
In the SAP Service Marketplace
System recommendations and Note Assistant.
In the SAP Service Marketplace.
If you create a change transaction in the system recommendations, you can process it further in the WebClient UI. The SAP Notes assignment block contains the SAP Notes selected in the system recommendations.
If you create a request for change from a message to which SAP Notes are already assigned, they are automatically assigned to the change request. You can display the details, and delete notes.