How To Fix UCMV018 - Storage of additional fin. data: Change may cause loss of data

SAP Error Message - Details

• Message type: E = Error

• Message class: UCMV - Messages for Versions

• Message number: 018

• Message text: Storage of additional fin. data: Change may cause loss of data

What causes this issue?

You changed or deleted the assigned version combination for special
version type &V2& and special version &V1& in Customizing <ZK>Special
Versions -> Storgage of Additional Financial Data</>. As a result,
additional financial data that you possibly already entered for the old
version combination for the storage of additional financial data can no
longer be read.

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?

Make sure that no unintentional loss of data occurs through the changed
Customizing <ZK>Special Versions -> Storage of Additional Financial Data
</>.
If necessary, undo the Customizing changes.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCMV018 - Storage of additional fin. data: Change may cause loss of data ?

  The SAP error message UCMV018 ("Storage of additional financial data: Change may cause loss of data") typically occurs in the context of financial data management within SAP systems, particularly when dealing with changes to financial data structures or configurations. This message is a warning indicating that the changes you are attempting to make could potentially lead to data loss or inconsistencies.
  Cause:
  
  Data Structure Changes: The error often arises when there are changes to the data structure of financial documents or master data that could lead to the loss of existing financial data.
  Incompatible Changes: If you are trying to modify fields or settings that are already populated with data, the system warns you that these changes might not be compatible with the existing data.
  Configuration Changes: Changes in configuration settings related to financial data storage, such as changing the data type of a field or altering the way data is aggregated or reported.
  
  Solution:
  
  Review Changes: Before proceeding with any changes, carefully review the modifications you are planning to make. Ensure that they are necessary and that you understand their implications.
  Backup Data: Always back up your data before making significant changes to the configuration or structure. This will allow you to restore the original state if something goes wrong.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or configuration you are working with. This can provide insights into potential impacts and best practices.
  Test in Development Environment: If possible, test the changes in a development or sandbox environment before applying them to the production system. This can help identify any issues without risking live data.
  Seek Expert Advice: If you are unsure about the changes, consult with an SAP expert or your organization's SAP support team. They can provide guidance on how to proceed safely.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error message or provide additional context on how to handle it.
  Transaction Codes: Familiarize yourself with transaction codes related to financial data management, such as FB01 (Post Document), FBL1N (Vendor Line Item Display), etc.
  Data Migration: If you are migrating data or changing data structures, consider using SAP's data migration tools and methodologies to ensure data integrity.
  Change Management: Implement a change management process to evaluate and approve changes to financial data structures, minimizing the risk of data loss.
  
  By following these steps and being cautious with changes to financial data, you can mitigate the risk of encountering the UCMV018 error and ensure the integrity of your financial data in SAP.