How To Fix WB2B2159 - Only field &1 of ext. structure &2 is set. Key &3.

SAP Error Message - Details

• Message type: E = Error

• Message class: WB2B2 - Trading Contract (part 2)

• Message number: 159

• Message text: Only field &1 of ext. structure &2 is set. Key &3.

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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Smart SAP Assistant

• What is the cause and solution for SAP error message WB2B2159 - Only field &1 of ext. structure &2 is set. Key &3. ?

  The SAP error message WB2B2159 indicates that there is an issue with the external structure in a business transaction, specifically that only one field of the external structure is set while others are expected to be populated. This error typically arises in the context of data transfer or integration scenarios, such as when working with IDocs, BAPIs, or other interfaces.
  Cause:
  The error occurs when:
  
  An external structure (like an IDoc or a data transfer structure) is expected to have multiple fields populated, but only one field is filled in.
  The system is trying to process a transaction or data transfer that requires more information than what has been provided.
  There may be a configuration issue, or the data being sent from the source system is incomplete.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Data Source: Ensure that the data being sent to SAP includes all the required fields for the external structure. Verify that the source system is correctly populating the necessary fields.
  
  
  Review the Mapping: If you are using middleware or an interface, check the mapping configuration to ensure that all required fields are being correctly mapped from the source to the target structure.
  
  
  Validate the Structure: Look at the definition of the external structure in SAP (transaction SE11 or SE80) to understand which fields are mandatory and ensure that they are being populated.
  
  
  Debugging: If you have access to debugging tools, you can trace the process to see where the data is being lost or not populated correctly.
  
  
  Consult Documentation: Review any relevant documentation for the specific transaction or interface you are working with to ensure compliance with the expected data format.
  
  
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  Related Information:
  
  Transaction Codes: You may want to check related transaction codes such as WE02 (IDoc display), WE19 (IDoc test), or SE37 (Function Module) to analyze the data flow.
  SAP Notes: Search for SAP Notes related to the specific error message or the transaction you are working with, as there may be known issues or patches available.
  Documentation: Review the SAP Help Portal for information on the specific module or functionality you are working with, as it may provide insights into required fields and structures.
  
  By following these steps, you should be able to identify the root cause of the WB2B2159 error and implement a solution to resolve it.