How To Fix RS_MAPI_JSON122 - Error in single item at &. No additional items allowed.

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_MAPI_JSON - Generic JSON schema messages

• Message number: 122

• Message text: Error in single item at &. No additional items allowed.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_MAPI_JSON122 - Error in single item at &. No additional items allowed. ?

  The SAP error message RS_MAPI_JSON122 typically occurs in the context of SAP systems when dealing with JSON data, particularly when using the SAP MAPI (Multi-API) framework. This error indicates that there is an issue with the structure of the JSON data being processed, specifically that a single item was expected, but the system encountered additional items.
  Cause:
  The error is usually caused by one of the following issues:
  
  Incorrect JSON Structure: The JSON data being sent to the SAP system is not formatted correctly. For example, if the API expects a single object but receives an array or multiple objects instead.
  API Expectations: The API endpoint being called may be designed to handle only a single item, but the request is sending multiple items.
  Data Mapping Issues: There may be a mismatch between the expected data structure in the SAP system and the actual data being sent.
  
  Solution:
  To resolve the RS_MAPI_JSON122 error, you can take the following steps:
  
  
  Check JSON Structure: Validate the JSON structure being sent to ensure it matches the expected format. Use tools like JSON validators to check for syntax errors or structural issues.
  
  
  Review API Documentation: Consult the API documentation to understand the expected input format. Ensure that you are sending the correct data type (single object vs. array).
  
  
  Modify the Request: If the API expects a single item, modify your request to ensure that only one item is being sent. If you need to send multiple items, check if there is a different endpoint or method that supports batch processing.
  
  
  Debugging: If you have access to debugging tools, use them to trace the request and response. This can help identify where the mismatch is occurring.
  
  
  Error Handling: Implement error handling in your application to catch such errors and provide meaningful feedback or logging for easier troubleshooting in the future.
  
  
  Related Information:
  
  SAP MAPI Framework: Understanding how the MAPI framework works can help in troubleshooting issues related to API calls and data handling.
  JSON Format: Familiarize yourself with JSON syntax and structure, as this is crucial for working with APIs that utilize JSON.
  SAP Community and Support: If the issue persists, consider reaching out to the SAP community forums or SAP support for assistance, providing them with details of the error and the JSON data being used.
  
  By following these steps, you should be able to identify and resolve the cause of the RS_MAPI_JSON122 error in your SAP system.