How To Fix SMT_WEB_DYNPRO024 - Only letters and the special character "_" are allowed for mappings

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT_WEB_DYNPRO - Web dynpro messages

• Message number: 024

• Message text: Only letters and the special character "_" are allowed for mappings

Self-Explanatory Message

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• What is the cause and solution for SAP error message SMT_WEB_DYNPRO024 - Only letters and the special character "_" are allowed for mappings ?

  The SAP error message SMT_WEB_DYNPRO024 indicates that there is an issue with the input data in a mapping context, specifically that only letters (A-Z, a-z) and the underscore character ("_") are allowed. This error typically arises in scenarios where you are defining or configuring mappings in SAP systems, such as in SAP Process Integration (PI) or SAP Process Orchestration (PO).
  
  Cause:
  The error is triggered when the input provided for a mapping name, variable, or identifier contains invalid characters. The allowed characters are limited to:
  
  Uppercase letters (A-Z)
  Lowercase letters (a-z)
  Underscore (_)
  
  Any other characters, such as numbers, spaces, or special characters (e.g., @, #, $, etc.), will lead to this error.
  
  Solution:
  To resolve this error, you should:
  
  Check the Input: Review the mapping name or identifier that you are trying to use. Ensure that it only contains valid characters (letters and underscores).
  Rename Invalid Entries: If you find any invalid characters, rename the mapping or identifier to