How To Fix KZ820 - Function "&" not available for the selected column

KZ820 - Overview

• Message type: E = Error

• Message class: KZ - Cost Object Repetitive Mfg / Process Mfg

• Message number: 820

• Message text: Function "&" not available for the selected column

What causes this issue?

You have chosen the function "&V1&". This function is not available for
the column you selected.

System Response

The function cannot be executed.

How to fix this error?

Position the cursor on a different column, and choose the function for
that column.

Error message extract from SAP system. Copyright SAP SE.

KZ820 - Details

• The SAP error message KZ820, which states "Function '&' not available for the selected column," typically occurs in the context of SAP reporting or data analysis tools, such as SAP BW (Business Warehouse) or SAP Analytics Cloud. This error indicates that a specific function or operation is not applicable to the column or data type you are trying to use it on.
  Causes:
  
  Incompatible Data Type: The function you are trying to apply may not be compatible with the data type of the selected column (e.g., trying to perform a mathematical operation on a text field).
  Function Not Supported: The function you are attempting to use may not be supported for the specific context or data model you are working with.
  Column Configuration: The column may not be configured correctly in the data model or report, leading to the function being unavailable.
  Missing Authorizations: Sometimes, the user may not have the necessary authorizations to access