How To Fix JSON_MESSAGES_WDR002 - Parsing of JSON string failed due to an illegal node type (&1)

JSON_MESSAGES_WDR002 - Overview

• Message type: E = Error

• Message class: JSON_MESSAGES_WDR - Message class for ABAP JSON library

• Message number: 002

• Message text: Parsing of JSON string failed due to an illegal node type (&1)

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 JSON_MESSAGES_WDR002 - Parsing of JSON string failed due to an illegal node type (&1) ?

  The SAP error message JSON_MESSAGES_WDR002 indicates that there was a failure in parsing a JSON string due to an illegal node type. This error typically occurs when the JSON data being processed does not conform to the expected structure or contains invalid elements.
  Cause
  The error can be caused by several factors, including:
  
  Invalid JSON Structure: The JSON string may have syntax errors, such as missing commas, brackets, or quotes.
  Unexpected Data Types: The JSON may contain data types that are not expected by the SAP application, such as a function or an unsupported type.
  Incorrect Node Types: The JSON parser encountered a node type that it does not recognize or cannot process, such as a circular reference or a complex object that cannot be serialized.
  Encoding Issues: There may be issues with character encoding that lead to malformed JSON.
  
  Solution
  To resolve the error, you can take the following steps:
  
  Validate JSON Structure: Use a JSON validator tool