How To Fix ARUN_MAIN026 - ARun field cannot be defined for material &1, plant &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 026

• Message text: ARun field cannot be defined for material &1, plant &2

What causes this issue?

You changed the Supply Assignment (ARun) field for a material when one
of the following conditions was not met:
Assignments exist for that material.
<ZK>Assign Batches </>checkbox is selected for the material.

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 conditions below are met for a material if you want to
change the ARun field:
Assignments do not exist for the material.
<ZK>Assign Batches</> checkbox has not been selected for the material.

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_MAIN026 - ARun field cannot be defined for material &1, plant &2 ?

  The SAP error message ARUN_MAIN026 indicates that a specific field related to the ARun (which typically refers to the "Advanced Replenishment" or "Advanced Planning" functionalities) cannot be defined for a particular material in a specified plant. This error usually arises in the context of material management or production planning when the system is unable to find the necessary configuration or data for the material in question.
  Cause:
  
  Missing Configuration: The material may not have been properly configured for the ARun functionality in the specified plant.
  Data Inconsistency: There may be inconsistencies or missing data in the material master or related tables that prevent the system from processing the ARun fields.
  Plant-Specific Settings: The settings for the plant may not support the ARun functionality for the specified material.
  Authorization Issues: There may be authorization issues preventing access to the necessary data for the material and plant combination.
  
  Solution:
  
  Check Material Master Data: Verify that the material master data is complete and correctly configured for the specified plant. Ensure that all relevant views (e.g., Basic Data, Purchasing, MRP) are properly maintained.
  Review ARun Configuration: Check the configuration settings for ARun in the system. Ensure that the material is set up to use ARun and that the necessary parameters are defined.
  Validate Plant Settings: Ensure that the plant settings allow for the use of ARun for the material. This may involve checking the plant-specific configuration in the system.
  Data Consistency Check: Run consistency checks on the material master and related tables to identify any discrepancies or missing data.
  Authorization Check: Ensure that the user has the necessary authorizations to access and modify the material and plant data.
  Consult Documentation: Refer to SAP documentation or notes related to ARun and the specific error message for additional guidance.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM03 (Display Material), MM02 (Change Material), or MM01 (Create Material) to check or update material master data.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.