A connection token is a required input for most connection requests and all requests that manipulate notes in a note pad. When your program issues one of these requests, it must be running in a context where use of the connection token is deemed valid by XCF. Valid contexts are a function of the execution environment, request type, and in some cases, connection attributes (usage classification, access scope, and connection scope). See What is a connection for more information about note pad connections and their attributes. In particular, the phrase "requester is the connector" is defined in Connection scope.

A connection token can only be used on the system that created the connection. XCF rejects an IXCNOTE request that uses a connection token from some other system.