How To Fix /AIF/ERROR_HANDLING123 - Structure of message(s) cannot be determined

/AIF/ERROR_HANDLING123 - Overview

• Message type: E = Error

• Message class: /AIF/ERROR_HANDLING -

• Message number: 123

• Message text: Structure of message(s) cannot be determined

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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/AIF/ERROR_HANDLING123 - Details

• The SAP error message /AIF/ERROR_HANDLING123 with the description "Structure of message(s) cannot be determined" typically occurs in the context of the Application Interface Framework (AIF) when the system is unable to identify the structure of the incoming or outgoing messages. This can happen for various reasons, including configuration issues, missing mappings, or incorrect message types.
  Causes:
  
  Missing or Incorrect Mapping: The mapping between the source and target structures may not be defined correctly or may be missing entirely.
  Invalid Message Type: The message type being processed may not be recognized or may not have a corresponding structure defined in the system.
  
  Configuration Issues: There may be issues in the AIF configuration, such as incorrect settings in the interface configuration or the message processing settings.
  Data Format Issues: The incoming data may not conform to the expected format, leading to difficulties in determining the structure.
  Version Mismatch: If there are changes in the data structure or versioning