How To Fix W8063 - Reference '&1'('&2') has changed - binding adapted for '&3'

SAP Error Message - Details

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 063

• Message text: Reference '&1'('&2') has changed - binding adapted for '&3'

What causes this issue?

The binding check has detected that a change has been made to the
definition of reference &V1& or object &V2& since the last update of
the workflow definition. The binding for container element &V3& uses
this definition and must therefore be updated.

System Response

The correct definition of the data reference is determined at workflow
runtime on an ad hoc basis. However, as long as the workflow definition
is not updated, the same ad hoc correction appears again every time the
workflow is run.

How to fix this error?

In order to permanently eliminate this discrepancy, you must update the
workflow definition.
Open the workflow definition in change mode.
Call (in sequence) all steps in which object &V2& or reference &V1& are
used.
Branch to the binding editor for each step affected.
Choose <LS>Binding -> Check</>. All necessary corrections will be
carried out automatically.
In the Workflow Builder, choose <LS>Extras -> Special functions ->
Container correction</> in order to correct the workflow container.
Save the workflow definition.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W8063 - Reference '&1'('&2') has changed - binding adapted for '&3' ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Message:
  W8063 Reference '&1'('&2') has changed - binding adapted for '&3'
  
  1. Cause
  This warning message occurs during the runtime of an ABAP program when a reference object that is being used in a field symbol or data reference has changed its content or structure unexpectedly. Specifically:
  
  The program had a reference to an object (e.g., a structure, table, or class instance) identified by &1 (object type) and &2 (object name or identifier).
  During processing, the reference has changed or been replaced by another object.
  SAP detects this change and automatically adapts the binding of the reference to the new object &3.
  
  This situation often arises when:
  
  A field symbol or data reference is assigned to an object, but the object is later replaced or modified.
  The reference points to a memory area that has been reallocated or changed.
  Dynamic programming techniques are used, and the referenced object changes during runtime.
  
  
  2. Solution
  
  Check the program logic: Review the code where the reference is assigned and where it might be changed. Ensure that the reference is not unintentionally overwritten or replaced.
  Avoid changing referenced objects unexpectedly: If the reference is meant to point to a stable object, make sure the object is not replaced or reinitialized during processing.
  Use proper assignment and release: When using field symbols or data references, assign and release them carefully to avoid dangling or changed references.
  Debugging: Use the ABAP debugger to trace the assignment and changes to the reference. Check where the reference changes and why.
  Adjust program logic if necessary: If the change is intentional, and the warning is harmless, you may suppress the warning or handle it explicitly in the code.
  
  
  3. Related Information
  
  Message Class: W8 (or similar, depending on SAP version)
  Message Number: 8063
  Context: This message is a warning, not an error, so the program continues execution but alerts the developer/user about the reference change.
  Field Symbols and Data References: This message is common when working with dynamic data objects, field symbols (FIELD-SYMBOLS), and data references (DATA REF TO).
  SAP Notes: Check SAP Notes for your specific SAP version if this message causes issues or if you want to understand best practices for handling dynamic references.
  ABAP Documentation: Review SAP documentation on field symbols and data references for best practices on assignment and memory management.
  
  
  Summary
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Reference object changed during runtime; binding adapted automatically by SAP.
  
  
  Solution
  Review and correct program logic to avoid unintended reference changes; debug assignments.
  
  
  Info
  Warning message; related to dynamic references and field symbols; program continues execution.
  
  
  
  
  If you provide the exact code snippet or scenario where this message appears, I can help you analyze it more specifically.