You can set a default name, or use a correlation string, for the name of your message collections, by using the Collection name property on the Collector node.
This task assumes that you have already created a message flow that contains a Collector node. For more information, see Creating a flow that uses message collections.
Each message collection that is produced by the Collector node has a name. The collection name is the value that is associated with the CollectionName attribute in the message collection tree structure. Each message collection has only one name.
You can either use Collection name to set a default name to be used for each message collection, or you can use the event handler properties to create a correlation string to use for the message collection name. You can use the correlation string to generate a unique name for the message collection, based on the content of the input messages. To use the correlation string for the collection name, you must enter the wildcard symbol *. If you leave Collection name blank, or if it is set to * and the value of the correlation string is empty, the CollectionName attribute of the message collection is set to an empty value.
Any * characters in the collection name are replaced with the correlation string. The correlation string for each message collection is also copied into the local environment message that is associated with the propagated message collection. The location of the correlation string in the local environment is Wildcard/WildcardMatch.
To configure the message collection name: