How To Fix RSAR389 - Not all key fields of characteristic &1 defined by the DataSource

RSAR389 - Overview

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 389

• Message text: Not all key fields of characteristic &1 defined by the DataSource

What causes this issue?

For a key of time-independent master data or time-independent texts,
DataSources can transfer to BW several data records in a request. The
DataSource carries information about whether there are potentially any
duplicate records in the request. This information is passed on to the
scheduler when new InfoPackages are created.
In this case, duplicate records are ignored in BW by default. When
multiple data records are transferred, the last data record of a request
for a particular key is updated in BW by default. The remaining data
records for this key in the same request are ignored.
The function that recognizes duplicate data records is attached to the
key for the characteristic. This means that all the key fields for
characteristic &V1& are supplied by the DataSource.

System Response

The system has checked the transfer rules for the mapping of the key
fields, and determined that not all the key fields for characteristic
&V1& are supplied by the DataSource.

How to fix this error?

As a rule, all the key fields for characteristic &V1& are supplied by
the DataSource. In certain cases, and depending on the application, it
can make sense to provide other rules for the key fields.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR389 - Not all key fields of characteristic &1 defined by the DataSource ?

  The SAP error message RSAR389 indicates that not all key fields of a characteristic defined in a DataSource are present in the DataSource itself. This typically occurs in the context of SAP BW (Business Warehouse) when trying to load data from a source system into a BW InfoProvider.
  
  Cause:
  The error arises when the DataSource is expected to provide certain key fields for a characteristic, but one or more of those fields are missing. This can happen due to several reasons:
  
  DataSource Configuration: The DataSource may not be correctly configured to include all necessary fields.
  Changes in Source System: The structure of the source system may have changed, leading to missing fields.
  Inconsistent Metadata: There may be inconsistencies between the DataSource definition in BW and the actual structure of the source data.
  
  
  Solution:
  To resolve the RSAR389 error, you can follow these steps:
  
  
  Check DataSource Definition:
  
  Go to the DataSource in the SAP BW system (transaction code RSA1).
  Verify that