How To Fix MY277 - You cannot change FIFO method &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MY - Messages for Balance Sheet Valuation(Low.Val.Det./LIFO/FIFO)

• Message number: 277

• Message text: You cannot change FIFO method &1

What causes this issue?

You cannot change or delete the attributes for FIFO method &V1& in
Customizing if corresponding entries exist in the system in the FIFO
results table.

System Response

The system does not allow you to change FIFO method &V1&.

How to fix this error?

Display the list of the existing entries for FIFO method &V1& (for
example, using transaction MRF5). You can only change the Customizing
entry if you delete these entries first.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MY277 - You cannot change FIFO method &1 ?

  The SAP error message MY277, which states "You cannot change FIFO method &1," typically occurs in the context of inventory management and valuation methods in SAP. This error indicates that there is an attempt to change the FIFO (First In, First Out) method for a material that is not allowed due to certain conditions.
  Cause:
  
  Material Status: The material may have transactions that have already been posted using the FIFO method, making it impossible to change the valuation method.
  Open Periods: If there are open accounting periods or if the material has been used in previous postings, the system will prevent changes to the FIFO method.
  Configuration Settings: The configuration settings in the system may restrict changes to the FIFO method for certain materials or under certain conditions.
  Material Type: The material type may have specific settings that do not allow changes to the FIFO method.
  
  Solution:
  
  Check Material Transactions: Review the transaction history for the material to see if there are any postings that would prevent the change. If there are, you may need to reverse or adjust those postings.
  Close Open Periods: Ensure that there are no open accounting periods that would restrict changes. You may need to close these periods if appropriate.
  Review Configuration: Check the configuration settings in the SAP system related to inventory management and valuation methods. Consult with your SAP configuration team to understand if there are restrictions in place.
  Use Alternative Methods: If changing the FIFO method is not possible, consider using alternative inventory valuation methods that are allowed for the material.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on changing valuation methods and the implications of such changes.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM02 (Change Material) to check the material settings and MB52 (List Warehouse Stocks on Hand) to review stock levels.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on FIFO method changes.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to material master data.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in inventory management.