How To Fix /SAPAPO/MC01153 - '&' is not a valid variable identifier (proposal: '&')

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MC01 -

• Message number: 153

• Message text: '&' is not a valid variable identifier (proposal: '&')

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 /SAPAPO/MC01153 - '&' is not a valid variable identifier (proposal: '&') ?

  The SAP error message /SAPAPO/MC01153 '&' is not a valid variable identifier (proposal: '&') typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with variable identifiers in planning functions or queries. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Invalid Variable Identifier: The error indicates that the variable identifier used in a planning function or query is not recognized as valid. This could be due to:
  
  Typographical errors in the variable name.
  The variable not being defined in the system.
  The variable being deleted or not activated.
  
  
  
  Incorrect Syntax: The use of special characters or incorrect formatting in the variable identifier can also lead to this error.
  
  
  Contextual Issues: The variable might be valid in one context but not in another, such as being defined for a different planning area or version.
  
  
  Solution:
  
  
  Check Variable Definition:
  
  Go to the transaction code /SAPAPO/VAR to check the definition of the variable. Ensure that the variable exists and is correctly defined.
  
  
  
  Correct Typographical Errors:
  
  Review the planning function or query where the error occurs and ensure that the variable name is spelled correctly and matches the defined variable.
  
  
  
  Review Variable Activation:
  
  Ensure that the variable is activated. If it has been recently created or modified, it may need to be activated.
  
  
  
  Check Context:
  
  Verify that the variable is being used in the correct context (e.g., the right planning area or version). If the variable is specific to a certain planning area, it cannot be used in another.
  
  
  
  Use the Proposal:
  
  The error message often provides a proposal for a valid variable identifier. Consider using the suggested variable if it fits your requirements.
  
  
  
  Consult Documentation:
  
  If you are unsure about the variable's purpose or usage, refer to the SAP documentation or help resources for guidance on variable identifiers in APO.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /SAPAPO/VAR: To manage and view variable definitions.
  /SAPAPO/MC62: To check planning functions and their variables.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on variable identifiers in APO.
  
  
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.