How To Fix /IWFND/MED_CHECK053 - Error checking '&1' of '&2': invalid_character

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/MED_CHECK -

• Message number: 053

• Message text: Error checking '&1' of '&2': invalid_character

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 /IWFND/MED_CHECK053 - Error checking '&1' of '&2': invalid_character ?

  The SAP error message /IWFND/MED_CHECK053 indicates that there is an issue with the data being processed in an OData service. Specifically, the error message states that there is an "invalid character" in the data being checked. This typically occurs when the data being sent or received contains characters that are not allowed or expected in the context of the OData service.
  Cause
  The error can be caused by several factors, including:
  
  
  Invalid Characters: The data being sent to the OData service contains characters that are not valid according to the OData protocol or the specific data model being used. This can include special characters, control characters, or characters that are not properly encoded.
  
  
  Data Format Issues: The data format may not conform to the expected format defined in the OData service. For example, if a string is expected but a numeric value is sent, it may lead to this error.
  
  
  Incorrect Data Mapping: If the data being sent does not match the expected structure or data types defined in the OData service, it can trigger this error.
  
  
  Encoding Issues: If the data is not properly encoded (e.g., UTF-8), it may lead to invalid characters being interpreted by the service.
  
  
  Solution
  To resolve the /IWFND/MED_CHECK053 error, you can take the following steps:
  
  
  Check Input Data: Review the data being sent to the OData service. Look for any invalid characters or unexpected data types. Ensure that the data conforms to the expected format.
  
  
  Validate Encoding: Ensure that the data is properly encoded in UTF-8. If you are using a different encoding, convert the data to UTF-8 before sending it to the OData service.
  
  
  Use Data Validation: Implement data validation checks in your application to catch invalid characters before sending data to the OData service.
  
  
  Review OData Service Metadata: Check the metadata of the OData service to understand the expected data types and formats. Ensure that the data being sent matches these expectations.
  
  
  Debugging: If possible, enable debugging or logging in your application to capture the exact data being sent to the OData service. This can help identify the specific character or data that is causing the issue.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific OData service you are using to understand any constraints or requirements regarding the data being sent.
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling invalid characters in OData services.
  OData Protocol: Familiarize yourself with the OData protocol specifications, which outline the rules for data formats, encoding, and valid characters.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify and resolve the cause of the /IWFND/MED_CHECK053 error in your SAP OData service.