How To Fix WN154 - Maintain layout first

WN154 - Overview

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 154

• Message text: Maintain layout first

What causes this issue?

An area schema can only be determined if the required layout is
specified.

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?

First, maintain the required layout.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN154 - Maintain layout first ?

  The SAP error message WN154: Maintain layout first typically occurs in the context of SAP's Warehouse Management (WM) module, particularly when trying to execute a transaction that requires a layout to be defined or maintained before proceeding. This error indicates that the system expects a layout configuration to be set up, but it has not been done yet.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Layout Configuration: The layout for the warehouse or storage type has not been defined in the system.
  Incorrect Transaction Sequence: The user is trying to perform an operation that requires a layout to be maintained, but the necessary steps to set up that layout have not been completed.
  User Authorization: The user may not have the necessary permissions to maintain or view the layout.
  
  
  Solution:
  To resolve the WN154 error, you can follow these steps:
  
  
  Maintain Layout:
  
  Go to the transaction code /SCWM/LO (for Warehouse Management) or /SCWM/PR