How To Fix ARUN_MAIN021 - Cannot define ôAssign Batchesö field for material &1, DC &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 021

• Message text: Cannot define ôAssign Batchesö field for material &1, DC &2

What causes this issue?

You have not met the following conditions:
You have changed the value from "1" (Assign Batches) to " " (Do not
Assign Batches) but assignments exist for this material.
You have changed the value from " " (Do not Assign Batches) to "1"
(Assign Batches) when one of the following occur.
There are assignments for this material.
There are open deliveries with assigned batch numbers.
Material is not managed in batches.

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?

Ensure that the following conditions are applied:
You can change the value from "1" (Assign Batches) to " " (Do not Assign
Batches) only if no assignments exist for this material.
You can change the value from " " (Do not Assign Batches) to "1" (Assign
Batches) only if:
There are no assignments for this material.
There are no open deliveries with assigned batch numbers.
Material is managed in batches.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ARUN_MAIN021 - Cannot define ôAssign Batchesö field for material &1, DC &2 ?

  The SAP error message ARUN_MAIN021 indicates that there is an issue with the "Assign Batches" field for a specific material in a distribution center (DC). This error typically arises in the context of batch management in SAP, where the system is unable to determine how to assign batches for the specified material and distribution center.
  Cause:
  
  Batch Management Not Activated: The material may not have batch management activated in the material master data.
  Configuration Issues: There may be configuration issues in the batch management settings or in the material type settings.
  Missing Data: Required data for batch determination may be missing or incorrectly configured.
  Material Status: The material may have a status that prevents batch assignment.
  Distribution Center Settings: The distribution center may not be properly configured to handle batch-managed materials.
  
  Solution:
  
  
  Check Material Master:
  
  Go to the material master (transaction code MM03) and check if batch management is activated for the material in question.
  Ensure that the relevant views (like Basic Data, Sales, and Plant Data) are correctly maintained.
  
  
  
  Review Batch Management Configuration:
  
  Check the configuration settings for batch management in SPRO (Customizing) under:
  
  Logistics - General > Batch Management > Batch Management Settings.
  
  
  Ensure that the settings for batch determination and assignment are correctly configured.
  
  
  
  Verify Distribution Center Settings:
  
  Check the settings for the distribution center to ensure it is set up to handle batch-managed materials.
  Ensure that the distribution center is active and properly linked to the material.
  
  
  
  Check Material Status:
  
  Ensure that the material status does not restrict batch assignment. You can check this in the material master.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to batch management and the specific error message for any additional insights or updates.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test to see if the error persists. You can try to create a delivery or perform a goods movement to check if the batch assignment works correctly.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  MM03 (Display Material Master)
  SPRO (Customizing)
  MB1A (Goods Movement)
  VL01N (Create Outbound Delivery)
  
  
  
  Batch Management: Understand the principles of batch management in SAP, including how batches are created, assigned, and managed within the system.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.