How To Fix MAHD402 - When changing a material, AHD can only be displayed

MAHD402 - Overview

• Message type: E = Error

• Message class: MAHD - Messages for Alternative Historical Data

• Message number: 402

• Message text: When changing a material, AHD can only be displayed

What causes this issue?

For <DS:GLOS.3526BF19AFAB52B9E10000009B38F974>material</> &SYST-MSGV1&
and <DS:GLOS.3526BF3BAFAB52B9E10000009B38F974>plant</> &SYST-MSGV2&, the
use of <DS:GLOS.70086ED0D946154EBC7C6B32697A9C30>alternative historical
data</> (AHD) for the <DS:GLOS.3526C3DEAFAB52B9E10000009B38F974>forecast
</> is active. Alternative historical data (AHD) cannot be maintained
when changing a material; it can only be displayed.

System Response

The alternative historical data is displayed.

How to fix this error?

To maintain AHD manually, use the intended program (transaction
<DS:TRAN.WAHD2>WAHD2</>).

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

MAHD402 - Details

• The SAP error message MAHD402 typically occurs when you are trying to change a material in the Material Master, but the system indicates that the material is in a status where it can only be displayed (AHD - Active History Data). This usually means that the material is locked for changes due to certain conditions or settings in the system.
  
  Cause:
  
  Material Status: The material may be set to a status that restricts changes. This can happen if the material is flagged as obsolete or if it is in a specific lifecycle phase.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the material.
  Data Locking: The material might be locked by another user or process, preventing changes.
  Configuration Settings: Certain configuration settings in the Material Management module may restrict changes to specific fields or data.
  
  
  Solution:
  
  Check Material Status: Verify the status of the material in the Material Master. If it