How To Fix FAR_MAN_PA_MSG029 - Parameter &1 is missing from the JSON string.

SAP Error Message - Details

• Message type: E = Error

• Message class: FAR_MAN_PA_MSG - Message Class ODATA_PAYMENTADVICES

• Message number: 029

• Message text: Parameter &1 is missing from the JSON string.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FAR_MAN_PA_MSG029 - Parameter &1 is missing from the JSON string. ?

  The SAP error message FAR_MAN_PA_MSG029 indicates that a required parameter is missing from a JSON string that is being processed. This error typically occurs in scenarios where SAP is expecting a specific structure or set of parameters in a JSON payload, such as during data import, API calls, or integration processes.
  Cause:
  The error is caused by one of the following:
  
  Missing Parameter: The JSON string being sent to the SAP system does not include a required parameter, denoted by &1 in the error message.
  Incorrect JSON Structure: The JSON structure may not conform to the expected format, leading to the omission of required fields.
  Data Mapping Issues: If the JSON is generated from another system, there may be issues in the mapping of data fields, resulting in missing parameters.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the JSON Payload: Review the JSON string being sent to the SAP system. Ensure that all required parameters are included. You can use tools like JSON validators to check the structure.
  
  
  Refer to Documentation: Consult the relevant SAP documentation or API specifications to identify the required parameters and their expected formats. This will help you understand what is missing.
  
  
  Debugging: If you have access to the backend or logs, check for any additional error messages or logs that might provide more context about the missing parameter.
  
  
  Update the Source System: If the JSON is generated from another system, ensure that the source system is correctly configured to include all necessary parameters in the JSON output.
  
  
  Testing: After making the necessary changes, test the integration again to ensure that the error is resolved.
  
  
  Related Information:
  
  SAP API Documentation: Look for the specific API or service documentation that outlines the required parameters for the JSON payload.
  Integration Tools: If you are using middleware or integration tools (like SAP PI/PO, SAP CPI), check their configurations to ensure they are correctly mapping and sending the required parameters.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to identify and resolve the issue related to the missing parameter in the JSON string.