Message Tracing refers to the process of identifying each message flow of each of the transactions that go through the Gateway. You can do message tracing on WSO2 API Manager by installing the Message Tracer feature that has been specifically developed for WSO2 products. You can use the Message Tracer to derive logging, auditing, and debugging related information with regard to message content and it’s direction. The Message Tracer is a part of carbon-analytics . From API Manager 2.1.0 onward, the Message Tracer and this feature is built into WSO2 API Manager.
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