How To Fix TT339 - Expected message &

SAP Error Message - Details

• Message type: E = Error

• Message class: TT - Extended Computer Aided Test Tool (eCATT) messages

• Message number: 339

• Message text: Expected message &

What causes this issue?

In the procedure, the message number specified was entered as an
'expected message'.

System Response

The expected message was not the last message output by the
transaction, so the transaction run is flagged as failed.

How to fix this error?

Analyze the error situation in the transaction, by running it online or
in processing mode 'Foreground'.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TT339 - Expected message & ?

  The SAP error message TT339, which states "Expected message &," typically occurs in the context of message handling in SAP systems, particularly when dealing with message types in the IDoc (Intermediate Document) processing or in other messaging scenarios.
  Cause:
  The error message TT339 usually indicates that the system was expecting a specific message type or message format but did not receive it. This can happen due to several reasons, including:
  
  Incorrect Configuration: The message type may not be correctly configured in the system.
  Missing or Incorrect IDoc Type: The IDoc type being processed may not match the expected type for the message.
  Data Issues: The data being sent may not conform to the expected structure or format.
  Communication Issues: There may be issues in the communication layer, such as network problems or incorrect endpoint configurations.
  
  Solution:
  To resolve the TT339 error, you can take the following steps:
  
  
  Check Configuration:
  
  Verify the configuration of the message type in the relevant transaction (e.g., WE20 for partner profiles).
  Ensure that the message type is correctly defined and associated with the appropriate IDoc type.
  
  
  
  Review IDoc Types:
  
  Check the IDoc type being used and ensure it matches the expected type for the message.
  Use transaction WE60 to review the IDoc structure and ensure it aligns with the expected format.
  
  
  
  Validate Data:
  
  Inspect the data being sent to ensure it adheres to the expected structure and contains all required fields.
  Use transaction WE19 to simulate the IDoc processing and identify any data-related issues.
  
  
  
  Check Communication Settings:
  
  Ensure that the communication settings (e.g., RFC destinations, ports) are correctly configured.
  Test the connection to the external system or partner to ensure it is operational.
  
  
  
  Review Logs:
  
  Check the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  Look at the IDoc monitoring (transaction WE02 or WE05) to see the status of the IDocs and any related errors.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific message type or IDoc type for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  IDoc Processing: Understanding how IDocs work in SAP can help in troubleshooting related issues. Familiarize yourself with the IDoc lifecycle, including creation, processing, and error handling.
  Message Types: Learn about different message types and their configurations in SAP, as this knowledge can help in identifying misconfigurations.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address the TT339 error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.