How To Fix LT149 - SU management must first be deactivated in all storage types

SAP Error Message - Details

• Message type: E = Error

• Message class: LT - LE-WM: View or Table Maintenance Error Messages

• Message number: 149

• Message text: SU management must first be deactivated in all storage types

What causes this issue?

You attempted to deactivate storage unit management at the warehouse
number level before deactivating it at the storage type level.

How to fix this error?

If you want to deactivate storage unit management for a warehouse
number, you must first deactivate SU management in each SU-managed
storage type associated with that warehouse number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LT149 - SU management must first be deactivated in all storage types ?

  The SAP error message LT149 indicates that the Storage Unit (SU) management must be deactivated in all storage types before you can perform certain operations, such as transferring stock or changing the status of storage units. This error typically arises in the context of warehouse management processes where storage units are being managed.
  Cause:
  The error occurs when you attempt to perform an operation that requires SU management to be turned off, but there are still storage types configured to use SU management. This can happen in scenarios such as:
  
  Trying to perform a stock transfer or a physical inventory process.
  Attempting to change the status of a storage unit while SU management is still active for certain storage types.
  
  Solution:
  To resolve the LT149 error, you need to deactivate SU management for all relevant storage types. Here are the steps to do this:
  
  
  Access the Warehouse Management Configuration:
  
  Go to the SAP Easy Access screen.
  Navigate to the following path: Logistics -> Logistics Execution -> Warehouse Management -> Interfaces -> Storage Unit Management -> Define Storage Types.
  
  
  
  Identify Storage Types:
  
  In the configuration screen, identify the storage types that are currently using SU management.
  
  
  
  Deactivate SU Management:
  
  For each storage type that is using SU management, you need to deactivate it. This is usually done by unchecking the option for "Storage Unit Management" in the storage type configuration.
  
  
  
  Save Changes:
  
  After making the necessary changes, save your configuration.
  
  
  
  Test the Operation:
  
  After deactivating SU management for all relevant storage types, try to perform the operation that previously resulted in the LT149 error.
  
  
  
  Related Information:
  
  Storage Unit Management (SUM): This is a feature in SAP Warehouse Management that allows for the management of stock at the storage unit level, providing more granular control over inventory.
  Warehouse Management (WM): This module in SAP is responsible for managing warehouse operations, including stock movements, inventory management, and storage management.
  Configuration Settings: Ensure that you have the necessary authorizations to make changes to the configuration settings in SAP.
  
  If you continue to experience issues after following these steps, it may be helpful to consult with your SAP Basis or WM consultant for further assistance, as there may be additional configurations or dependencies that need to be addressed.