The note feature is powered by a parent service, the Note Service (NOTE). A Note Service is accessible by means of CygNet Explorer. This service contains notes created within a single site or from multiple sites on the same domain, and is associated with one or more current value services (CVS).
You can associate as many current value services (i.e., UIS, SVCMON, HSS, and/or OPCIS) as you like with a single Note Service. However, each associated current value service can only be associated with a single Note Service. For instance, Note Service A can contain notes referencing data from both UIS A and UIS B. However, UIS A can only be associated with Note Service A and UIS B can only be associated with Note Service A.
See Notes for more information.