How To Fix /PLMB/BA_RCP426 - Mass unit of formula item &1 does not match base unit in material master

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMB/BA_RCP -

• Message number: 426

• Message text: Mass unit of formula item &1 does not match base unit in material master

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMB/BA_RCP426 - Mass unit of formula item &1 does not match base unit in material master ?

  The SAP error message /PLMB/BA_RCP426 indicates that there is a mismatch between the mass unit of a formula item and the base unit of measure defined in the material master. This error typically occurs in the context of production planning or recipe management, particularly when working with batch management or when creating or modifying recipes in SAP.
  Cause:
  
  Unit of Measure Mismatch: The mass unit defined for the formula item (e.g., grams, kilograms) does not match the base unit of measure defined in the material master for that item.
  Incorrect Configuration: The material master may have been set up incorrectly, or the formula item may have been defined with an incorrect unit of measure.
  Data Entry Errors: Manual entry errors during the creation or modification of the formula or material master data.
  
  Solution:
  
  
  Check Material Master:
  
  Go to the material master record for the affected item (transaction code MM03).
  Verify the base unit of measure in the Basic Data view. Ensure that it is set correctly according to the intended use of the material.
  
  
  
  Check Formula Item:
  
  Review the formula or recipe where the error occurred (transaction code C201 or C202).
  Ensure that the mass unit of the formula item matches the base unit of measure in the material master.
  
  
  
  Adjust Units of Measure:
  
  If there is a mismatch, you may need to adjust either the material master or the formula item to ensure they are consistent.
  If necessary, change the unit of measure in the formula item to match the base unit of measure in the material master.
  
  
  
  Recreate or Modify:
  
  If the issue persists, consider recreating the formula or modifying it to ensure that all units of measure are consistent.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional guidance on managing units of measure in recipes and material masters.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  C201: Create Recipe
  C202: Change Recipe
  
  
  Unit of Measure Configuration: Ensure that the units of measure are correctly configured in the system. This can be done through the customizing settings in SAP.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the error and ensure that the mass unit of the formula item matches the base unit in the material master.