How To Fix FINS_ML_MIG026 - MLMAA-flag is set, however T134M-WERTU is not set or null

SAP Error Message - Details

• Message type: E = Error

• Message class: FINS_ML_MIG - Messages for S/4HANA Material Ledger Migration

• Message number: 026

• Message text: MLMAA-flag is set, however T134M-WERTU is not set or null

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FINS_ML_MIG026 - MLMAA-flag is set, however T134M-WERTU is not set or null ?

  The SAP error message FINS_ML_MIG026 indicates that there is an issue related to the migration of Material Ledger (ML) data, specifically concerning the MLAA (Material Ledger Actual Activity) flag and the T134M table.
  Cause:
  The error occurs when the MLAA flag is set for a material, but the corresponding field WERTU in the T134M table is either not set or is null. The WERTU field is used to indicate whether the material is managed in the Material Ledger and should have a value if the MLAA flag is activated.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the T134M Table:
  
  Use transaction code SE16 or SE16N to access the T134M table.
  Look for the material in question and check the value of the WERTU field.
  If the WERTU field is null or not set, you will need to update it.
  
  
  
  Update the WERTU Field:
  
  If the material should be managed in the Material Ledger, you need to set the WERTU field to the appropriate value (usually 'X' for active).
  You can do this through transaction code MM02 (Change Material) or by using a mass update method if there are multiple materials.
  
  
  
  Check Material Ledger Settings:
  
  Ensure that the Material Ledger is properly configured for the materials in question. This includes checking the valuation area settings and ensuring that the Material Ledger is activated for the relevant company codes and plants.
  
  
  
  Re-run the Migration:
  
  After making the necessary changes, re-run the migration process to see if the error persists.
  
  
  
  Consult Documentation:
  
  If you are unsure about the implications of changing the WERTU field or the MLAA flag, consult the SAP documentation or reach out to your SAP support team for guidance.
  
  
  
  Related Information:
  
  Material Ledger: A component in SAP that allows for the management of inventory and valuation in multiple currencies and at multiple valuation levels.
  T134M Table: This table contains settings related to the Material Ledger for materials, including whether they are managed in the Material Ledger.
  MLAA Flag: This flag indicates whether the material is subject to actual activity price calculation in the Material Ledger.
  
  If the issue persists after following these steps, it may be necessary to engage with SAP support or a consultant who specializes in Material Ledger configurations.