How To Fix DMC_GENERAL223 - Name of function module &1 contains invalid characters

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 223

• Message text: Name of function module &1 contains invalid characters

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_GENERAL223 - Name of function module &1 contains invalid characters ?

  The SAP error message DMC_GENERAL223 indicates that there is an issue with the name of a function module in your SAP system. Specifically, the error states that the name of the function module contains invalid characters. This can occur in various scenarios, such as when creating or modifying function modules, or when calling them in your code.
  Cause:
  
  Invalid Characters: The function module name may contain characters that are not allowed. SAP function module names must adhere to specific naming conventions, which typically allow only alphanumeric characters and underscores.
  Length Restrictions: Function module names have a maximum length (usually 30 characters). If the name exceeds this limit, it can trigger this error.
  Namespace Issues: If you are using a custom namespace, ensure that it is correctly defined and that the function module name adheres to the naming conventions for that namespace.
  
  Solution:
  
  Check Function Module Name: Review the name of the function module that is causing the error. Ensure it only contains valid characters (letters, numbers, and underscores) and does not exceed the length limit.
  Rename Function Module: If the name contains invalid characters, rename the function module to comply with SAP naming conventions.
  Review Code: If the error occurs when calling a function module, check the code to ensure that the function module name is correctly referenced and does not contain any typos or invalid characters.
  Use Transaction SE37: You can use transaction SE37 (Function Builder) to check the function module's properties and make necessary adjustments.
  Check for Transport Issues: If the function module was transported from another system, ensure that the transport did not introduce any issues with the name.
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for function modules, which can be found in the SAP documentation.
  Function Module Documentation: Review the documentation for the specific function module to understand its intended use and any naming requirements.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address similar issues or provide additional guidance.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP Basis or development team for further assistance.