How To Fix OM463 - After activating material ledger, live data must be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: OM - Customizing Materialwirtschaft

• Message number: 463

• Message text: After activating material ledger, live data must be converted

What causes this issue?

You have indicated that the material ledger is to be <LS>activated
</>for one or more valuation areas.
After you activate the material ledger, you must convert the data for
these valuation areas to your <LS>live system</>. This ensures
consistency of the valuation data and the material ledger is flagged
internally as being <LS>in production</>.

System Response

You can only start up production in these valuation areas in Materials
Management once the data has been converted after activation of the
Material Ledger.

How to fix this error?

Decide the valuation areas for which you wish to activate the Material
Ledger.
Print out this system message.
Save your Customizing settings.
Convert the data for the Material Ledger.
You have two options:
You activate the Material Ledger in a system that does not contain any
production data and transport the Customizing settings to your
production system.
You must ensure that the data is converted for the Material Ledger in
the production system before you start work with Materials Management.
You activate the Material Ledger in a system containing production
data. Immediately after activating the Material Ledger, you must convert
the data for production start-up.
Choose <LS>Accounting -> Controlling -> Actual costing/Material ledger
-> Utilities -> Production startup</>.


Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OM463 - After activating material ledger, live data must be converted ?

  The SAP error message OM463 indicates that after activating the Material Ledger, there is a requirement to convert live data. This typically occurs when you enable the Material Ledger functionality in an SAP system that already has existing data. The Material Ledger is used for managing inventory and valuation in multiple currencies and is essential for companies that require detailed inventory management.
  Cause:
  The error arises because the Material Ledger requires that all existing inventory data be converted to the new structure that supports the Material Ledger functionality. This conversion is necessary to ensure that the system can accurately track and manage inventory values and movements under the new configuration.
  Solution:
  To resolve the OM463 error, you need to perform the following steps:
  
  
  Run the Live Data Conversion Program:
  
  You need to execute the program that converts the existing live data to the new format required by the Material Ledger. This is typically done using transaction code OMX1 or through the appropriate program in the SAP system.
  The program will convert the existing inventory data and ensure that it is compatible with the Material Ledger.
  
  
  
  Check Configuration:
  
  Ensure that the Material Ledger is correctly configured in your system. This includes settings related to currency types, valuation methods, and other relevant parameters.
  
  
  
  Review Documentation:
  
  Refer to the SAP documentation or notes related to the Material Ledger activation and live data conversion. This can provide specific instructions and considerations for your version of SAP.
  
  
  
  Test the Conversion:
  
  Before running the conversion in a production environment, it is advisable to test the process in a development or quality assurance environment to ensure that it works as expected and does not lead to data inconsistencies.
  
  
  
  Backup Data:
  
  Always ensure that you have a backup of your data before performing any conversion or significant changes in the system.
  
  
  
  Consult SAP Support:
  
  If you encounter issues during the conversion process or if the error persists, consider reaching out to SAP support for assistance. They can provide guidance based on your specific system configuration and version.
  
  
  
  Related Information:
  
  Material Ledger Activation: Understand the implications of activating the Material Ledger, including changes to inventory valuation and reporting.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OMX1 (for live data conversion) and OMX2 (for Material Ledger settings).
  SAP Notes: Check for any SAP Notes related to the Material Ledger and live data conversion, as they may contain important updates or fixes.
  
  By following these steps, you should be able to resolve the OM463 error and successfully activate the Material Ledger in your SAP system.