How To Fix 42229 - Only exception & is possible in the interface

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 229

• Message text: Only exception & is possible in the interface

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 42229 - Only exception & is possible in the interface ?

  The SAP error message "42229: Only exception & is possible in the interface" typically occurs in the context of SAP Business Workflow or when dealing with interfaces in SAP systems. This error indicates that the system is expecting a specific type of exception handling, but the current configuration or implementation does not meet that expectation.
  Cause:
  
  Incorrect Exception Handling: The error usually arises when the interface is designed to handle exceptions, but the implementation does not provide the necessary exception types or handling mechanisms.
  Configuration Issues: There may be a misconfiguration in the workflow or interface settings that leads to this error.
  Incompatible Data Types: The data being passed through the interface may not match the expected types, leading to exceptions that are not handled properly.
  Missing Implementation: If a specific exception is expected but not implemented in the interface, this error can occur.
  
  Solution:
  
  Check Exception Handling: Review the interface implementation to ensure that all expected exceptions are properly defined and handled. Make sure that the interface is set up to handle the specific exception type that is being raised.
  Review Configuration: Go through the configuration settings of the workflow or interface to ensure that they are correctly set up. This includes checking the parameters and settings related to exception handling.
  Debugging: Use debugging tools in SAP to trace the execution flow and identify where the exception is being raised. This can help pinpoint the exact cause of the error.
  Consult Documentation: Refer to SAP documentation or notes related to the specific interface or workflow you are working with. There may be known issues or additional configuration steps required.
  Testing: After making changes, conduct thorough testing to ensure that the interface behaves as expected and that exceptions are handled correctly.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like SWI1 for workflow monitoring) that can help you analyze the workflow and interface behavior.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.