How To Fix MM151 - You cannot maintain average plant stock here

MM151 - Overview

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 151

• Message text: You cannot maintain average plant stock here

What causes this issue?

You wanted to maintain the average plant stock. However, this is not
possible in the following cases:
When scheduling the creation or changing of a material
When creating a material
If you have not specified a plant
If you have not selected a view for the user department <LS>MRP</>

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?

Check and extend your data as required.

Error message extract from SAP system. Copyright SAP SE.

MM151 - Details

• The SAP error message MM151, "You cannot maintain average plant stock here," typically occurs in the Materials Management (MM) module when a user attempts to make changes to the average stock of a material at the plant level in a way that is not allowed by the system. This error is often related to the way stock is managed and the settings in the material master.
  
  Cause:
  
  Stock Type Restrictions: The error may arise if the stock type (e.g., unrestricted, blocked, or quality inspection) does not allow for changes to the average stock.
  Material Master Settings: The material master record may not be set up to allow for average stock maintenance. This can happen if the material is set to a specific valuation type or if it is a non-stock material.
  Transaction Context: The transaction you are using may not support changes to average stock. For example, certain transactions are designed for specific types