How To Fix VMD_API171 - Invalid character entered

SAP Error Message - Details

• Message type: E = Error

• Message class: VMD_API - Vendor APIs

• Message number: 171

• Message text: Invalid character entered

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?

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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 VMD_API171 - Invalid character entered ?

  The SAP error message VMD_API171: Invalid character entered typically occurs when a user inputs a character or string that is not acceptable in the context of the transaction or field being used. This can happen in various scenarios, such as when entering data in a form, transaction code, or any input field that has specific character restrictions.
  Causes:
  
  Invalid Characters: The input may contain special characters, spaces, or symbols that are not allowed.
  Data Type Mismatch: The input may not match the expected data type (e.g., entering letters in a numeric field).
  Field Length Exceeded: The input may exceed the maximum length allowed for that field.
  Configuration Issues: There may be specific configurations or validations set up in the system that restrict certain inputs.
  
  Solutions:
  
  Check Input: Review the input for any invalid characters. Ensure that only allowed characters are used (e.g., alphanumeric characters).
  Data Type Validation: Ensure that the data being entered matches the expected data type for the field.
  Field Length: Verify that the input does not exceed the maximum length defined for the field.
  Consult Documentation: Refer to the SAP documentation or help files for the specific transaction or field to understand the valid input formats.
  Error Message Details: Sometimes, the error message may provide additional details or context. Pay attention to any accompanying information that may help identify the issue.
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting with a technical expert.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message.
  Transaction Codes: Identify the specific transaction code where the error occurs, as this can help narrow down the context.
  User Roles and Authorizations: Ensure that the user has the necessary roles and authorizations to perform the action, as sometimes restrictions can lead to unexpected errors.
  
  By following these steps, you should be able to identify and resolve the issue related to the VMD_API171 error message in SAP.