[axonframework] Saga failed to handle event. Need help understanding Metadata and Sagas.

The identifier that is being logged, is the identifier of the message that failed. If you see messages that have a correlationId with that same identifier, that means that there was a message that was generated as a result of processing the message with that identifier.

In other words, the first entry represents the message for which processing failed. The second message is a message that was generated as a result of processing the first (either by the failing handler, or another one).

Hope this helps.
Cheers,

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