How To Fix WM156 - Function not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 156

• Message text: Function not allowed

What causes this issue?

The function you have chosen is either not yet allowed, not yet
available or not yet released for use.

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?

Please try another function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM156 - Function not allowed ?

  The SAP error message WM156 ("Function not allowed") typically occurs in the Warehouse Management (WM) module when a user attempts to perform an operation that is not permitted in the current context or configuration. This can happen for various reasons, and understanding the cause is essential for resolving the issue.
  Causes of WM156 Error
  
  Incorrect Movement Type: The movement type being used may not be allowed for the specific operation or stock type.
  Warehouse Configuration: The warehouse may not be configured to allow certain functions, such as stock transfers or physical inventory.
  User Authorizations: The user may lack the necessary authorizations to perform the action.
  Stock Type Restrictions: Certain stock types (e.g., blocked stock) may have restrictions on movements.
  Status of the Material: The material may be in a status that does not allow the requested operation (e.g., blocked, restricted).
  Inconsistent Data: There may be inconsistencies in the master data or transaction data that prevent the operation from being executed.
  
  Solutions to WM156 Error
  
  
  Check Movement Type: Verify that the movement type you are using is appropriate for the operation you are trying to perform. Consult the movement type configuration in the system.
  
  
  Review Warehouse Configuration: Ensure that the warehouse is set up correctly to allow the operation. This includes checking the settings for storage types, storage bins, and stock types.
  
  
  User Authorizations: Check the user roles and authorizations to ensure that the user has the necessary permissions to perform the action. This may involve consulting with your SAP security team.
  
  
  Stock Type Verification: Confirm the stock type of the material you are working with. If it is blocked or restricted, you may need to change its status or use a different stock type.
  
  
  Material Status: Check the status of the material in question. If it is blocked or has other restrictions, you may need to resolve those issues before proceeding.
  
  
  Data Consistency: Investigate any inconsistencies in the data. This may involve checking for open documents, pending transactions, or other issues that could affect the operation.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details related to the error message and the context in which it occurs.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in WM, such as LT01 (Create Transfer Order), LT10 (Transfer Order Confirmation), and others that may be related to the operation you are trying to perform.
  SAP Notes: Check SAP Notes for any known issues or patches related to the WM156 error. SAP frequently updates its knowledge base with solutions to common problems.
  Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with SAP experts for further assistance.
  
  By systematically addressing these areas, you should be able to identify the cause of the WM156 error and implement an appropriate solution.