How To Fix WN691 - Settings for the material update structure are inconsistent; s. long text

WN691 - Overview

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 691

• Message text: Settings for the material update structure are inconsistent; s. long text

What causes this issue?

The system configuration settings for the material update structure are
inconsistent.

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?

Contact your system administrator.

Procedure for System Administrators

Make sure that there is an entry in database table CKMLAB01 with ASCHEMA
equals '0001' in Customizing for Controlling under Product Cost
Controlling-> Actual Costing/Material Ledger-> Material Update-> Define
Material Update Structure.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN691 - Settings for the material update structure are inconsistent; s. long text ?

  The SAP error message WN691 indicates that there is an inconsistency in the settings for the material update structure. This error typically arises in the context of inventory management or material master data processing. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Inconsistent Configuration: The error usually occurs when the configuration settings for the material update structure in the system do not match the expected settings. This can happen due to changes in configuration, updates, or inconsistencies in the material master data.
  Missing or Incorrect Settings: If certain fields or parameters required for the material update are not set correctly, it can lead to this error.
  Data Migration Issues: If data has been migrated from another system or if there have been recent changes to the material master, inconsistencies may arise.
  
  
  Solution:
  
  
  Check Configuration Settings:
  
  Go to the configuration settings for the material update structure in the SAP system. This can typically be