How To Fix WS683 - Ensure that a database index exists for WBELNN/POSNN for WBRF

WS683 - Overview

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 683

• Message text: Ensure that a database index exists for WBELNN/POSNN for WBRF

What causes this issue?

To avoid a full table scan of the table 'WBRF', a database index has to
be active on the database for the field 'WBELNN', and possibly 'POSNN'.
SAP delivers the inactive database index '001', which you can activate
if no equivalent database index exists for the database table 'WBRF'.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

WS683 - Details

• Certainly! Here's a detailed explanation for the SAP error message WS683:
  
  SAP Error Message: WS683
  Text:
  Ensure that a database index exists for WBELNN/POSNN for WBRF
  
  Cause
  This error occurs because the SAP system expects a database index on the fields WBELNN and POSNN in the database table WBRF, but such an index does not exist. The absence of this index can lead to performance issues or failures when the system tries to access or update data in the WBRF table using these fields.
  
  WBRF is a table related to workflow or business document references.
  WBELNN and POSNN are fields typically used as keys or for searching entries in this table.
  The system requires an index on these fields to efficiently perform lookups or joins.
  
  
  Solution
  
  
  Check if the index exists:
  Use transaction SE11 (Data Dictionary) to check the indexes on table WBRF.
  
  Enter table name WBRF.
  Click on the "Indexes" button.
  Look for an index that includes fields WBELNN and POSNN.
  
  
  
  Create the missing