How To Fix MM156 - You cannot maintain valuation data here

MM156 - Overview

• Message type: E = Error

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

• Message number: 156

• Message text: You cannot maintain valuation data here

What causes this issue?

You wanted to maintain valuation data. However, this requires:
You to specify a plant or company code (depending on whether valuation
at your company is at plant level or company code level)
The view to contain the appropriate
<DS:GLOS.maintenance_status>maintenance status</> for accounting data

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 the views selected.
If necessary, ask your system administrator to check whether the view
contains the maintenance status you require.
Information for system administrators
In the IMG activity <LS>Configure customized material master</>, you
can see what maintenance statuses a view contains by choosing
<LS>Maintain screen sequences, logical screens, subscreens</>.
<DS:SIMG.SIMG_CFMENUOLMSOMT3>Proceed</>

Error message extract from SAP system. Copyright SAP SE.

MM156 - Details

• The SAP error message MM156, "You cannot maintain valuation data here," typically occurs in the Materials Management (MM) module when a user attempts to access or modify valuation data for a material in a context where it is not allowed. This can happen for several reasons, and understanding the cause is essential for finding a solution.
  Causes of MM156 Error
  
  
  Material Type Restrictions: Certain material types in SAP have specific settings that restrict the maintenance of valuation data. For example, materials classified as "non-valuated" or "consignment" may not allow changes to valuation data.
  
  
  Document Type Restrictions: The document type being used may not permit changes to valuation data. For instance, if you are trying to change data in a purchase order or a goods movement document that does not allow valuation changes, you will encounter this error.
  
  
  User Authorizations: The user may lack the necessary authorizations to maintain valuation data for the material. This