How To Fix C4801 - The only template characters allowed are ' - _ . and , '

SAP Error Message - Details

• Message type: E = Error

• Message class: C4 - CTMS_SYNTAX_CHECK

• Message number: 801

• Message text: The only template characters allowed are ' - _ . and , '

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message C4801 - The only template characters allowed are ' - _ . and , ' ?

  The SAP error message C4801, which states "The only template characters allowed are ' - _ . and , '," typically occurs when you are trying to enter a template or a naming convention that includes invalid characters. This error is often encountered in various SAP modules, particularly when dealing with naming conventions for objects like materials, vendors, or other master data.
  Cause:
  The error is triggered when the input string contains characters that are not permitted according to the naming rules defined in the SAP system. The only allowed special characters are:
  
  Hyphen (-)
  Underscore (_)
  Period (.)
  Comma (,)
  
  Any other characters, such as spaces, slashes, or special symbols, will lead to this error.
  Solution:
  To resolve the C4801 error, you should:
  
  Review the Input: Check the string or template you are trying to enter. Look for any invalid characters that are not in the allowed list.
  Modify the Input: Remove or replace any invalid characters with allowed ones. For example, if you have spaces or special characters, replace them with underscores or hyphens as appropriate.
  Follow Naming Conventions: Ensure that you are adhering to the naming conventions set by your organization or the SAP system. This may include specific prefixes, suffixes, or formats that need to be followed.
  Test the Changes: After making the necessary adjustments, try to save or process the entry again to see if the error persists.
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal or specific module documentation for guidelines on naming conventions and allowed characters.
  User Exits or BAdIs: If you are working in a custom development environment, check if there are any user exits or BAdIs that might impose additional restrictions on naming conventions.
  Consult with SAP Basis or Functional Team: If you continue to face issues, it may be helpful to consult with your SAP Basis or functional team for further insights or adjustments to the system settings.
  
  By following these steps, you should be able to resolve the C4801 error and successfully enter the required data in SAP.