How To Fix CLBW004 - No key field found for creation of DataSource

CLBW004 - Overview

• Message type: E = Error

• Message class: CLBW - Classification and BW

• Message number: 004

• Message text: No key field found for creation of DataSource

What causes this issue?

During generation of a classification or configuration DataSource, only
those key fields for the object table (field "Obj.Tabelle") that are
already present in the basis DataSource transferred to the extract
structure. This is the case when none of the key fields of the
object table were found in the structure of the basis DataSource.

System Response

A DataSource cannot be created without key fields. The action was
cancelled.

How to fix this error?

Check whether you have selected the correct basis DataSource and
object table. For more information, please see SAP Note 569849.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CLBW004 - No key field found for creation of DataSource ?

  The SAP error message CLBW004 indicates that there is no key field found for the creation of a DataSource. This typically occurs when you are trying to create a DataSource in SAP BW (Business Warehouse) and the system cannot identify a unique key field in the underlying data structure (like a table or view) that is necessary for the DataSource to function correctly.
  Causes:
  
  Missing Key Field: The underlying table or view does not have a primary key or unique identifier defined.
  Incorrect Data Source Definition: The DataSource may be incorrectly defined, leading to the system not recognizing any key fields.
  Data Source Type: The type of DataSource you are trying to create may not support the structure of the underlying data.
  Data Structure Changes: Changes in the underlying data structure (like renaming or removing fields) may have led to the absence of key fields.
  
  Solutions:
  
  
  Check Underlying Data Structure:
  
  Verify that the underlying table or view has