What occurs after the External Message is de-queued by the Background Process?

After the External Message is de-queued by the Background Process, the next step is to invoke the Parser to transform it into an Internal Message. This transformation is crucial because the system operates with internal formats that are standard and optimized for processing. By converting the External Message into this internal format, the application can then handle the message appropriately within its infrastructure.

The parsing process typically involves analyzing the external format, extracting relevant data, and rearranging it to match the internal specifications required by the system. This ensures that any subsequent operations that rely on this Internal Message can proceed without issues, maintaining the integrity and functionality of the application's messaging capabilities.

The other options do not accurately describe the proper sequence following de-queuing. For instance, simply sending the message out immediately would not allow for necessary transformations or processing steps to occur. Storing the message in a different format does not align with the immediate processing needs, nor does the handler creating an External Message fit in this context since the system is moving from an External Message to an Internal one, not the other way around.