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

ARUN_MAIN026 - Overview

• 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.

ARUN_MAIN026 - Details

• 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