How To Fix IAC_XML020 - Invalid JSON data

SAP Error Message - Details

• Message type: E = Error

• Message class: IAC_XML -

• Message number: 020

• Message text: Invalid JSON data

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 IAC_XML020 - Invalid JSON data ?

  The SAP error message IAC_XML020: Invalid JSON data typically indicates that there is an issue with the JSON data being processed in an SAP application, particularly in the context of integration scenarios where JSON is used for data exchange.
  Causes:
  
  
  Malformed JSON: The JSON data may not be properly formatted. Common issues include:
  
  Missing commas between key-value pairs.
  Unmatched brackets or braces.
  Incorrect use of quotes (e.g., using single quotes instead of double quotes).
  Invalid characters or escape sequences.
  
  
  
  Data Type Mismatch: The JSON structure may not match the expected data types defined in the SAP system. For example, sending a string where a number is expected.
  
  
  Encoding Issues: The JSON data may contain characters that are not properly encoded, leading to parsing errors.
  
  
  Schema Validation Failure: If the JSON data is expected to conform to a specific schema (e.g., JSON Schema), any deviation from that schema can trigger this error.
  
  
  Incorrect API Endpoint: Sending JSON data to an incorrect or unsupported API endpoint can also lead to this error.
  
  
  Solutions:
  
  
  Validate JSON Format: Use a JSON validator tool to check the structure of your JSON data. Ensure that it is well-formed and adheres to JSON standards.
  
  
  Check Data Types: Review the expected data types for each field in the SAP system and ensure that the JSON data matches these expectations.
  
  
  Encoding Check: Ensure that the JSON data is properly encoded, especially if it contains special characters. Use UTF-8 encoding where applicable.
  
  
  Review API Documentation: Check the API documentation for the correct structure and required fields for the JSON data you are sending. Ensure that you are using the correct endpoint.
  
  
  Error Logging: If possible, enable detailed logging in your SAP application to capture more information about the error. This can help identify the specific part of the JSON that is causing the issue.
  
  
  Testing with Sample Data: Test the API with known good sample JSON data to ensure that the issue is with the data being sent and not with the API itself.
  
  
  Related Information:
  
  JSON Format: JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate.
  SAP Integration: SAP systems often use JSON for data exchange in APIs, especially in scenarios involving SAP Cloud Platform, SAP Gateway, or SAP Fiori applications.
  Error Handling: Implement robust error handling in your application to gracefully manage and log errors related to JSON processing.
  
  By addressing the above causes and implementing the suggested solutions, you should be able to resolve the IAC_XML020: Invalid JSON data error in your SAP application.