How To Fix S#399 - Name & contains special characters that are not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: S# -

• Message number: 399

• Message text: Name & contains special characters that are not permitted

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 S#399 - Name & contains special characters that are not permitted ?

  The SAP error message S#399 indicates that a name or identifier you are trying to use contains special characters that are not permitted. This error typically occurs in various contexts within SAP, such as when creating or modifying objects like user names, material numbers, or other identifiers.
  Cause:
  The error is triggered when the input string includes characters that are not allowed according to SAP's naming conventions. Common disallowed characters may include:
  
  Special characters (e.g., @, #, $, %, &, *, etc.)
  Spaces
  Certain punctuation marks
  
  Solution:
  To resolve this error, you should:
  
  Review the Input: Check the name or identifier you are trying to use and identify any special characters or spaces.
  Modify the Name: Remove or replace any disallowed characters with valid ones. For example:
  
  Use underscores (_) or hyphens (-) instead of spaces or special characters.
  Ensure that the name starts with a letter and follows the naming conventions for the specific object type you are working with.
  
  
  Follow Naming Conventions: Familiarize yourself with the specific naming conventions for the type of object you are creating or modifying. For example, user names may have different rules compared to material numbers.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module you are working with to understand the naming conventions and restrictions.
  Transaction Codes: If you are encountering this error in a specific transaction, check the transaction code documentation for any additional guidelines.
  SAP Community: You can also search or ask questions in the SAP Community forums for insights from other users who may have faced similar issues.
  
  By ensuring that your names and identifiers comply with SAP's naming rules, you should be able to avoid this error in the future.