Explanation:
Box 1: Use the Correlation type
The Correlation filter type allows you to filter messages based on specific system properties, such as message ID, correlation ID, or custom properties. This filter type is ideal for cases where you want to match messages based on these attributes.
Box 2: Annotate the metadata of the original message
Selecting "Annotate the metadata of the original message" allows you to add or modify metadata properties of the message without changing the message body. This is useful when you want to retain the original content but need to include additional information in the message metadata after filtering.