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

SAP Error Message - Details

• 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 found in the IMG (Implementation Guide) under Logistics > Material Management > Inventory Management > Material Update.
  Ensure that all necessary settings are correctly configured and consistent with the requirements of your business processes.
  
  
  
  Review Material Master Data:
  
  Check the material master records for the materials that are causing the error. Ensure that all required fields are filled out correctly and that there are no missing entries.
  You can use transaction codes like MM03 (Display Material) to review the material master data.
  
  
  
  Consistency Check:
  
  Use transaction code SE11 to check the database table related to the material update structure. Look for any inconsistencies or errors in the data.
  You can also run consistency checks using transaction codes like MMPI (Material Master Mass Maintenance) to identify and correct any inconsistencies.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the configuration and material master data, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) for managing material master data.
  Documentation: Review SAP documentation related to material management and inventory processes to understand the expected configurations and settings.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify and resolve the inconsistency causing the WN691 error in your SAP system.