How To Fix RSPLFOX086 - Variable &1 must have the type of a field to be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: RSPLFOX - FOX messages: Parsing and runtime

• Message number: 086

• Message text: Variable &1 must have the type of a field to be changed

What causes this issue?

The formula contains a variable declaration in which an invalid type is
used. Only those characteristics are allowed as types which are
contained in the list of fields to be changed of the formula function.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Change the type of the variable to that of a field to be changed. You
can find out which characteristics are possible here from the
presentation in the formula operand: All fields to be changed are
contained in the formula operands.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSPLFOX086 - Variable &1 must have the type of a field to be changed ?

  The SAP error message RSPLFOX086 indicates that there is an issue with a variable in a Fox formula (used in SAP BW/BI) that is expected to be a field that can be changed, but it is not. This typically occurs in the context of planning functions or queries where the variable is not defined correctly.
  Cause:
  
  Variable Type Mismatch: The variable you are trying to use in your Fox formula is not defined as a field that can be changed. This could happen if the variable is defined as a constant or if it is not set up correctly in the planning environment.
  Incorrect Variable Definition: The variable might not be defined in the context of the planning function or query where it is being used.
  Data Type Issues: The data type of the variable may not match the expected type for the operation you are trying to perform.
  
  Solution:
  
  Check Variable Definition: Go to the variable definition in the SAP BW/BI system and ensure that it is defined as a field that can be changed. This can be done in the planning function or query where the variable is being used.
  Modify the Fox Formula: If the variable is not intended to be a field that can be changed, you may need to modify the Fox formula to use a different variable or to adjust the logic to accommodate the current variable type.
  Review Data Types: Ensure that the data types of the variables used in the Fox formula are compatible with the operations being performed. If necessary, convert the variable to the appropriate type.
  Testing: After making changes, test the planning function or query to ensure that the error is resolved.
  
  Related Information:
  
  Fox Formula: Fox is a programming language used in SAP BW for planning functions. Understanding how to write and debug Fox formulas is essential for resolving issues like RSPLFOX086.
  SAP BW/BI Documentation: Refer to the official SAP documentation for detailed information on variable types, Fox formulas, and planning functions.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP BW/BI expert for further assistance.