How To Fix JSON_MESSAGES_WDR003 - Parsing of JSON string failed due to an illegal value type (&1)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 003

• Message text: Parsing of JSON string failed due to an illegal value 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message JSON_MESSAGES_WDR003 - Parsing of JSON string failed due to an illegal value type (&1) ?

  The SAP error message JSON_MESSAGES_WDR003 indicates that there was a failure in parsing a JSON string due to an illegal value type. This typically occurs when the JSON data being processed contains a value that is not valid according to the JSON specification or the expected data types defined in the SAP application.
  Cause
  The error can be caused by several factors, including:
  
  Invalid Data Types: The JSON string may contain values that are not of the expected type (e.g., a string where a number is expected).
  Malformed JSON: The JSON structure may be incorrectly formatted, such as missing quotes, brackets, or commas.
  Unsupported Data Types: The JSON may include data types that are not supported by the SAP system, such as functions or complex objects.
  Special Characters: The presence of special characters that are not properly escaped can lead to parsing errors.
  
  Solution
  To resolve the JSON_MESSAGES_WDR003 error, you can take the following steps:
  
  
  Validate JSON Structure: Use