How To Fix L9520 - MKPF-BFWMS = 2 is only allowed for external warehouse

SAP Error Message - Details

• Message type: E = Error

• Message class: L9 - Function Modules

• Message number: 520

• Message text: MKPF-BFWMS = 2 is only allowed for external warehouse

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message L9520 - MKPF-BFWMS = 2 is only allowed for external warehouse ?

  The SAP error message L9520 indicates that there is an issue with the movement type or the warehouse management settings in your SAP system. Specifically, the message states that the field MKPF-BFWMS (which indicates whether the document is related to an external warehouse) is set to 2, but this is only allowed for external warehouses.
  Cause:
  
  Incorrect Warehouse Configuration: The warehouse in question is not configured as an external warehouse in the system, but the system is trying to process a transaction that requires it to be treated as such.
  Movement Type Issue: The movement type being used may be configured to require an external warehouse, but the warehouse being referenced is not set up as an external warehouse.
  Data Entry Error: There may be a mistake in the data entry where the wrong warehouse or movement type is being used.
  
  Solution:
  
  
  Check Warehouse Configuration:
  
  Go to the transaction code SPRO and navigate to the relevant configuration for Warehouse Management.
  Ensure that the warehouse in question is correctly set up as an external warehouse if it is supposed to be one.
  
  
  
  Review Movement Type:
  
  Check the movement type being used in the transaction. You can do this by going to transaction code OMJJ to review the movement type settings.
  Ensure that the movement type is appropriate for the warehouse being used.
  
  
  
  Correct Data Entry:
  
  Verify the data being entered in the transaction. Make sure that the correct warehouse and movement type are being used.
  If necessary, consult with the relevant business process owner to confirm the correct settings.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to Warehouse Management and movement types to ensure compliance with best practices.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test transaction to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  MKPF Table: This table contains the header data for material documents. The field BFWMS indicates whether the document is related to an external warehouse (1 = No, 2 = Yes).
  Movement Types: Movement types in SAP define the type of stock movement (e.g., goods receipt, goods issue, transfer postings). Each movement type has specific settings that determine how it interacts with warehouse management.
  External Warehouse: An external warehouse is typically a warehouse that is managed outside of the standard SAP warehouse management processes, often used for third-party logistics or similar scenarios.
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Warehouse Management for further assistance.