How To Fix 28071 - Object reference/variable used more than once: &1 &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 071

• Message text: Object reference/variable used more than once: &1 &2

What causes this issue?

The syntax check on the dependency found 2 different variables, &V1&
and &V2&, for the same object.

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?

If you define a variable in a constraint (such as ?T IS_A POST), you
must use the variable (such as ?T) to refer to the object (such as
POST) throughout the constraint. Correct your entry accordingly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28071 - Object reference/variable used more than once: &1 &2 ?

  The SAP error message 28071 ("Object reference/variable used more than once: &1 &2") typically occurs in the context of ABAP programming when a variable or object reference is being used multiple times in a way that is not allowed. This can happen in various scenarios, such as when you are trying to use a variable in a way that violates the rules of its scope or lifecycle.
  Cause:
  
  Multiple Usage: The error indicates that a variable or object reference is being used more than once in a context where it should only be used once. This can happen in loops, function calls, or when passing parameters.
  Incorrect Logic: The logic in the program may be flawed, leading to the same variable being referenced multiple times unintentionally.
  Scope Issues: The variable may be defined in a scope that does not allow for multiple references.
  
  Solution:
  
  Review Code: Check the code where the error occurs. Look for instances where the same variable or object reference is being used multiple times. Ensure that each variable is used appropriately according to its intended purpose.
  Refactor Logic: If the logic requires the same variable to be used multiple times, consider refactoring the code. You might need to create a copy of the variable or use a different variable for each instance.
  Check Function Calls: If the error occurs during a function call, ensure that you are not passing the same variable as multiple parameters if the function does not support it.
  Debugging: Use debugging tools to step through the code and identify where the variable is being reused incorrectly. This can help you pinpoint the exact location of the issue.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for guidelines on variable usage and scope.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Code Review: If you are part of a development team, consider conducting a code review with peers to get additional insights on the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.