How To Fix TM029 - Variable name contains an invalid character

SAP Error Message - Details

• Message type: E = Error

• Message class: TM - Messages for FIMA

• Message number: 029

• Message text: Variable name contains an invalid character

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TM029 - Variable name contains an invalid character ?

  The SAP error message TM029, which states "Variable name contains an invalid character," typically occurs when you are trying to use a variable name in a transaction or report that does not conform to the naming conventions set by SAP. This can happen in various contexts, such as when defining variables in a report, query, or during the configuration of certain modules.
  Cause:
  The error is usually caused by one or more of the following issues:
  
  Invalid Characters: The variable name contains characters that are not allowed. For example, special characters (like @, #, $, etc.) or spaces may be present.
  Length Restrictions: The variable name may exceed the maximum length allowed by SAP.
  Naming Conventions: The variable name may not follow the required naming conventions, such as starting with a letter or using only alphanumeric characters and underscores.
  
  Solution:
  To resolve the TM029 error, you can take the following steps:
  
  
  Check Variable Name: Review the variable name you are trying to use and ensure it only contains valid characters. The name should:
  
  Start with a letter (A-Z).
  Contain only letters, numbers (0-9), and underscores (_).
  Not contain spaces or special characters.
  Be within the length limit (usually up to 30 characters).
  
  
  
  Rename the Variable: If the variable name is invalid, rename it according to the naming conventions. For example, if your variable is named my-variable@1, you could rename it to my_variable_1.
  
  
  Review Documentation: Consult the SAP documentation or help files related to the specific module or transaction you are working with to ensure you are following the correct naming conventions.
  
  
  Test Changes: After making the necessary changes, test the transaction or report again to see if the error persists.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or updates related to the TM029 error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with transaction codes related to the area you are working in, as they may provide additional context or tools for troubleshooting.
  
  By following these steps, you should be able to resolve the TM029 error and successfully use the variable in your SAP environment.