How To Fix WM434 - Module number & is not an admissible external number

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 434

• Message text: Module number & is not an admissible external number

What causes this issue?

This number does not fall within the number intervals that have been
defined.

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?

Enter an allowed number or change the number intervals (transaction
WSN1).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM434 - Module number & is not an admissible external number ?

  The SAP error message WM434, which states "Module number & is not an admissible external number," typically occurs in the Warehouse Management (WM) module when there is an issue with the external number assignment for a warehouse module. This error can arise due to several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Invalid Module Number: The module number you are trying to use may not be defined in the system or may not be valid for the specific warehouse.
  Configuration Issues: The configuration settings for the warehouse management module may not be set up correctly, leading to the system not recognizing the module number.
  Number Range Issues: The number range for the module numbers may not be properly defined or may have been exhausted.
  Authorization Issues: The user may not have the necessary authorizations to access or use the specified module number.
  
  Solutions:
  
  Check Module Number: Verify that the module number you are trying to use is valid and exists in the system. You can do this by checking the configuration in the Warehouse Management settings.
  Review Configuration: Go to the configuration settings for Warehouse Management (Transaction code: SPRO) and ensure that the module numbers are correctly defined and assigned to the appropriate warehouse.
  Check Number Ranges: Ensure that the number range for the module numbers is correctly defined and has not been exhausted. You can check this in the number range configuration (Transaction code: SNRO).
  User Authorizations: Ensure that the user has the necessary authorizations to access and use the specified module number. You may need to consult with your SAP security team to verify this.
  Consult Documentation: Refer to SAP documentation or help files for additional guidance on the specific error message and its context.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (Customizing), SNRO (Number Range Objects), and WM-specific transactions for managing warehouse processes.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for WM434 in the SAP Support Portal.
  Community Forums: Consider visiting SAP community forums or discussion boards where other users may have encountered similar issues and shared their solutions.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with your SAP support team or a consultant who specializes in Warehouse Management for further assistance.