How To Fix MH128 - MARA/MAW1 inconsistency for variants for the generic material &

SAP Error Message - Details

• Message type: E = Error

• Message class: MH - Maintain Material Master Data (Retail)

• Message number: 128

• Message text: MARA/MAW1 inconsistency for variants for the generic material &

What causes this issue?

The relevant MAW1 entries do not exist for all of the variants. This
can only be due to a program error.

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?

Notify your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MH128 - MARA/MAW1 inconsistency for variants for the generic material & ?

  The SAP error message MH128 indicates an inconsistency between the MARA (General Material Data) and MAW1 (Material Master: Work Scheduling) tables for a generic material. This error typically arises when there are discrepancies in the data related to variants of a generic material, which can affect processes like production planning, inventory management, and sales.
  Cause:
  
  
  Data Inconsistency: The most common cause of this error is that the data in the MARA and MAW1 tables does not match for the specified generic material. This can happen due to:
  
  Incorrect or incomplete data entry.
  Changes made to the material master that were not properly propagated to all relevant tables.
  Deletion or modification of variants without updating the generic material.
  
  
  
  Configuration Issues: Sometimes, configuration settings related to material variants or generic materials may not be set up correctly, leading to inconsistencies.
  
  
  Master Data Issues: If the master data for the material or its variants is not maintained correctly, it can lead to this error.
  
  
  Solution:
  
  
  Check Data Consistency:
  
  Use transaction codes like SE16 or SE11 to check the MARA and MAW1 tables for the specific material and its variants.
  Look for discrepancies in the data fields that should match.
  
  
  
  Correct Data:
  
  If inconsistencies are found, correct the data in the relevant tables. This may involve updating the material master records or ensuring that all variants are correctly linked to the generic material.
  
  
  
  Recreate Variants:
  
  If the variants are corrupted or incorrectly set up, consider deleting and recreating them to ensure they are properly linked to the generic material.
  
  
  
  Use Transaction MM02:
  
  Go to transaction MM02 (Change Material) and check the views related to the material. Make sure all necessary data is filled out correctly.
  
  
  
  Check Configuration:
  
  Review the configuration settings for material variants and generic materials in the SAP system. Ensure that they are set up according to best practices.
  
  
  
  Run Consistency Checks:
  
  Use SAP standard reports or tools to run consistency checks on the material master data to identify and rectify any issues.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  MM01 (Create Material), MM02 (Change Material), MM03 (Display Material), SE16 (Data Browser), SE11 (Data Dictionary).
  
  
  
  SAP Notes: Check SAP Notes related to material master inconsistencies for any patches or updates that may address known issues.
  
  
  Documentation: Refer to SAP documentation on material master data management for best practices and guidelines.
  
  
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  By following these steps, you should be able to resolve the MH128 error and ensure that your material master data is consistent and accurate.