How To Fix MD165 - Simulative opening balance (stock) not allowed with MRP areas

MD165 - Overview

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 165

• Message text: Simulative opening balance (stock) not allowed with MRP areas

What causes this issue?

The use of MRP areas has been activated at client level.
Long-term planning with consideration of simulative opening stock is
not permitted as it is not possible to determine average plant stock at
MRP area level.

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?

Choose another setting for the opening stock to be considered.

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 MD165 - Simulative opening balance (stock) not allowed with MRP areas ?

  The SAP error message MD165, which states "Simulative opening balance (stock) not allowed with MRP areas," typically occurs in the context of Material Requirements Planning (MRP) when you are trying to perform a simulation run that involves opening balances for materials that are managed with MRP areas.
  
  Cause:
  The error arises because the system does not allow the use of simulative opening balances when MRP areas are defined for the material. MRP areas are used to manage stock and planning at a more granular level, and the simulation process does not support the concept of opening balances in this context.
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Remove MRP Areas: If the use of MRP areas is not essential for your planning process, you can remove the MRP area settings for the material. This will allow you to use simulative opening balances without encountering the error.
  
  
  Use Actual Balances: Instead of using