How To Fix W8145 - Object type & overwrites initial object type of target element

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 145

• Message text: Object type & overwrites initial object type of target element

What causes this issue?

The object type of the target element has not been specified. At
runtime, a reference to object type &V1& will be assigned to the target
element.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W8145 - Object type & overwrites initial object type of target element ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Error Message:
  W8145 Object type & overwrites initial object type of target element
  
  Cause:
  This warning message occurs during the development or modification of an ABAP Dictionary object (such as a structure, table, or data element) or during the enhancement of an interface or data flow in tools like SAP BW or SAP PI/PO.
  Specifically, the message indicates that the object type you are trying to assign or use overwrites the initial object type of the target element. In other words, the target element was originally defined with a certain object type (e.g., a data element, structure, or table type), and now the system detects that you are trying to assign or map it to a different object type, which may lead to inconsistencies or unexpected behavior.
  
  When does it typically occur?
  
  When you change the data type or object type of a field or element in a structure or interface.
  When you map or assign an object of one type to a target element that was originally defined with a different object type.
  During data flow or interface mapping in SAP BW, SAP PI/PO, or other integration scenarios.
  When modifying or enhancing existing objects where the original object type is being overwritten.
  
  
  Implications:
  
  This is a warning (not an error), so the system allows the change but alerts you that the original object type is being overwritten.
  Overwriting the object type can cause issues in data consistency, runtime errors, or unexpected behavior in programs or interfaces that rely on the original object type.
  It may affect data validation, conversion routines, or interface compatibility.
  
  
  Solution / How to resolve:
  
  
  Review the change carefully:
  
  Check why the object type is being overwritten. Confirm if this change is intentional and necessary.
  
  
  Align object types:
  
  If possible, keep the object type consistent with the original definition to avoid potential issues.
  
  
  Adjust dependent objects:
  
  If the object type must be changed, ensure that all dependent programs, interfaces, or data flows are adjusted accordingly to handle the new object type.
  
  
  Test thoroughly:
  
  After making changes, perform thorough testing to ensure that the change does not cause runtime errors or data inconsistencies.
  
  
  Consult documentation or SAP notes:
  
  Sometimes SAP provides specific notes or guidelines for handling such warnings in particular contexts (e.g., BW transformations, PI mappings).
  
  
  
  Related Information:
  
  This message is a warning (W8145), not an error, so it does not stop the activation or transport but should be addressed to maintain system integrity.
  Similar messages may appear in contexts like:
  
  ABAP Dictionary object changes
  SAP BW transformations and data flow mappings
  SAP PI/PO interface mappings
  
  
  Check SAP Help Portal or SAP Notes for context-specific guidance.
  Example SAP Note: Sometimes SAP Notes related to data type changes or interface enhancements mention this warning.
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Message
  W8145 Object type & overwrites initial object type of target element
  
  
  Cause
  Attempt to assign or map an object type different from the original object type of the target
  
  
  Effect
  Warning about potential inconsistency or unexpected behavior
  
  
  Solution
  Review and confirm changes, keep object types consistent, adjust dependent objects, test
  
  
  Context
  ABAP Dictionary, SAP BW, SAP PI/PO, interface mappings
  
  
  
  
  If you provide the exact context (e.g., ABAP Dictionary, BW transformation, PI mapping), I can give more tailored advice.