How To Fix /IBX/RBD_IPX139 - Operator &1 is not permitted for initial variable name

/IBX/RBD_IPX139 - Overview

• Message type: E = Error

• Message class: /IBX/RBD_IPX -

• Message number: 139

• Message text: Operator &1 is not permitted for initial variable name

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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/IBX/RBD_IPX139 - Details

• The SAP error message /IBX/RBD_IPX139 Operator &1 is not permitted for initial variable name typically occurs in the context of SAP Integrated Business Planning (IBP) or similar applications where you are working with planning models, variables, or key figures. This error indicates that there is an issue with the syntax or the use of operators in the definition of a variable or key figure.
  
  Cause:
  
  Invalid Operator: The error suggests that an operator (like +, -, *, /, etc.) is being used incorrectly in the context of defining an initial variable name.
  Syntax Error: There may be a syntax error in the formula or expression where the variable is being defined.
  Incorrect Variable Name: The variable name may not conform to the naming conventions or rules set by the system.
  
  
  Solution:
  
  Check the Formula: Review the formula or expression where the variable is defined. Ensure that you are not using any operators in a way that