How To Fix ARUN_MAIN020 - Cannot set Adv. plan. Ind. and ARun fields together for matl &1, DC &2

ARUN_MAIN020 - Overview

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 020

• Message text: Cannot set Adv. plan. Ind. and ARun fields together for matl &1, DC &2

What causes this issue?

You have defined a value for <ZK>Advanced Planning Indicator</> for a
material relevant to Supply Assignment (ARun) or you have set the ARun
field for a material with advanced planning indicator selected.

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?

For a material, define a value for either the <ZK>Advanced Planning
Indicator</> or <ZK>ARun </>field. You cannot define both the fields
together.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

ARUN_MAIN020 - Details

• The SAP error message ARUN_MAIN020 indicates that there is a conflict in the settings for the Advanced Planning Indicator and the ARun fields for a specific material and distribution center (DC). This error typically arises in the context of Advanced Planning and Optimization (APO) or similar planning modules within SAP.
  
  Cause:
  The error occurs when both the Advanced Planning Indicator and the ARun fields are set simultaneously for a material in a specific distribution center. This is not allowed because these two fields are mutually exclusive; you can only use one or the other for planning purposes.
  
  Solution:
  To resolve this error, you need to check the settings for the material and distribution center in question. Here are the steps you can take:
  
  
  Check Material Master Data:
  
  Go to the material master data for the specific material (transaction code: MM03).
  Navigate to the relevant views (e.g., MRP, MRP 2) and check the settings for the Advanced Planning