How To Fix MMPUR_CAT_EXTR_LGMSG003 - Invalid JSON format

SAP Error Message - Details

• Message type: E = Error

• Message class: MMPUR_CAT_EXTR_LGMSG - Extractor Log Messages

• Message number: 003

• Message text: Invalid JSON format

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 MMPUR_CAT_EXTR_LGMSG003 - Invalid JSON format ?

  The SAP error message MMPUR_CAT_EXTR_LGMSG003: Invalid JSON format typically occurs when there is an issue with the JSON data being processed in the SAP system, particularly in the context of the SAP Ariba or SAP S/4HANA procurement modules. This error indicates that the JSON data structure does not conform to the expected format, which can prevent successful data processing or integration.
  Causes:
  
  Malformed JSON: The JSON string may have syntax errors, such as missing commas, brackets, or quotes.
  Incorrect Data Types: The JSON may contain values that do not match the expected data types (e.g., a string where a number is expected).
  Unexpected Fields: The JSON may include fields that are not recognized or expected by the SAP system.
  Encoding Issues: Special characters or incorrect encoding can lead to JSON parsing errors.
  Version Mismatch: The JSON structure may be based on an outdated or incorrect version of the API specification.
  
  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 the expected schema.
  Check API Documentation: Refer to the relevant SAP API documentation to ensure that the JSON structure matches the expected format, including required fields and data types.
  Debugging: If you have access to logs or debugging tools, check for additional error messages or logs that may provide more context about the failure.
  Test with Sample Data: Use sample JSON data that is known to work with the system to isolate whether the issue is with the specific data being sent.
  Encoding Check: Ensure that the JSON data is properly encoded, especially if it contains special characters.
  Consult SAP Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with the JSON data and any relevant error logs.
  
  Related Information:
  
  JSON Structure: Familiarize yourself with the basic structure of JSON, which consists of key-value pairs and arrays.
  SAP API Specifications: Review the specific API documentation for the SAP module you are working with to understand the expected JSON format.
  Error Handling: Implement error handling in your integration logic to gracefully manage and log errors related to JSON processing.
  
  By addressing the above points, you should be able to resolve the MMPUR_CAT_EXTR_LGMSG003 error and ensure that your JSON data is correctly formatted for processing in SAP.