In the context of incoming messages, what does MSG_EXTL_IN refer to?

MSG_EXTL_IN refers to the process of converting a message document (mem_doc) into a message structure (mem_msg). This conversion is essential in the context of incoming messages, as it allows the system to interpret and process the data contained within the incoming message.

When a message arrives at the system, it is typically in the form of a document that contains various fields and data. The system needs to create a message object that can be understood and utilized for further processing, such as triggering actions or updating records. The transformation from mem_doc to mem_msg facilitates this by enabling the system to decode and extract necessary information from the document format into a structured message format.

Understanding this conversion is crucial, as it is the first step in handling incoming messages within the Avaloq Message Interface framework. It sets the stage for how the messages will be processed subsequently, affecting the overall flow of transactions and the handling of data within the system.