How To Fix WS872 - Internal error: No implementation for identification object category &

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 872

• Message text: Internal error: No implementation for identification object category &

What causes this issue?

An identification object category (&V1&) was entered for &V2&, for which
there is no BAdI implementation. However, in order to process an
identification object in Settlement Management, there must be a BAdI
implementation.

System Response

The identification object category &V1& cannot be used.

How to fix this error?

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

Procedure for System Administrators

If the first character of the identification object category is a
number, then it is an identification object category delivered by SAP.
If the first character is not a number, then it is an identification
object category in the customer namespace.
The BAdI to be implemented is:
Identification object category for the supplier
SAP namespace: WLF_ID_OBJECT_VENDOR_INT
Customer namespace: WLF_ID_OBJECT_VENDOR
Identification object category for the customer
SAP namespace: WLF_ID_OBJECT_CUSTOMER_INT
Customer namespace: WLF_ID_OBJECT_CUSTOMER
Identification object category for the material
SAP namespace: WLF_ID_OBJECT_MATERIAL_INT
Customer namespace: WLF_ID_OBJECT_MATERIAL

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS872 - Internal error: No implementation for identification object category & ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WS872 Internal error: No implementation for identification object category &
  
  Cause:
  This error occurs when the system tries to process an identification object category (such as a business object or identification object) for which no implementation exists in the system. In other words, the system expects a handler or class to manage a specific identification object category, but it cannot find any implementation or configuration for it.
  Common scenarios include:
  
  Missing or incomplete configuration of identification objects in the Business Object Repository (BOR).
  Custom or standard identification object categories that are referenced but not implemented.
  Incomplete or inconsistent transport/import of objects related to identification categories.
  Usage of a category that is not supported or recognized by the system.
  
  
  Solution:
  
  
  Check the Identification Object Category:
  
  Identify the exact category causing the issue (the placeholder & in the message will be replaced by the actual category in the system).
  Use transaction SWO1 (Business Object Builder) to check if the identification object category exists and is properly implemented.
  
  
  
  Verify Implementation:
  
  Ensure that the identification object category has an associated implementation class or handler.
  If it is a custom category, verify that the development objects (classes, function modules, etc.) are correctly created and activated.
  
  
  
  Check Configuration and Transport:
  
  If this error appeared after a transport or system upgrade, verify that all related objects were transported correctly.
  Re-import or re-activate the relevant objects if necessary.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to WS872 or identification object categories.
  Sometimes, SAP provides patches or corrections for missing implementations.
  
  
  
  Debugging:
  
  If you have development access, debug the process where the error occurs to identify which identification object category is causing the problem.
  Trace back to the point where the system tries to find the implementation and fails.
  
  
  
  
  Related Information:
  
  Transaction SWO1: Business Object Builder, used to manage business objects and identification objects.
  Identification Objects: Used in SAP to uniquely identify business entities (e.g., customers, materials).
  Business Object Repository (BOR): Central repository for business objects and their methods.
  SAP Notes: Check SAP Support Portal for notes related to WS872 or identification object categories.
  Common Context: This error often appears in workflows, ALE/IDoc processing, or custom developments involving business objects.
  
  
  If you provide the exact identification object category (the value replacing &), I can help you with more specific guidance.