How To Fix UAS018 - Posting level cannot be changed because data already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: UAS -

• Message number: 018

• Message text: Posting level cannot be changed because data already exists

What causes this issue?

You attempted to make changes to the posting levels of the data basis.
However, this is only possible as long as no data was yet posted in the
data basis. However, the current data basis already contains data.

System Response

Changes to the posting levels are not possible in this data basis.

How to fix this error?

Create a new data basis and define the desired posting levels in it
before you use the data basis in a working environment for cost
estimates.

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 UAS018 - Posting level cannot be changed because data already exists ?

  The SAP error message UAS018 ("Posting level cannot be changed because data already exists") typically occurs in the context of Asset Accounting (FI-AA) when you attempt to change the posting level of an asset that already has posted transactions. The posting level determines how transactions are recorded in the asset accounting system, and changing it after transactions have been posted can lead to inconsistencies in the data.
  Cause:
  The error arises because the system prevents changes to the posting level of an asset if there are already existing postings (e.g., acquisitions, retirements, transfers) associated with that asset. This is a safeguard to maintain data integrity and ensure that financial reports remain accurate.
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Check Existing Transactions: Review the asset's transaction history to identify any existing postings. You can do this by using transaction codes like AS03 (Display Asset) to view the asset's details and transaction history.
  
  
  Reverse Existing Postings: If it is necessary to change the posting level, you may need to reverse or delete the existing transactions associated with the asset. This can be done using transaction codes like AB08 (Reverse Asset Posting) or other relevant transactions, depending on the type of posting.
  
  
  Change Posting Level: Once all relevant transactions have been reversed or deleted, you can proceed to change the posting level of the asset. This can typically be done in the asset master record using transaction code AS02 (Change Asset).
  
  
  Consult Documentation: Refer to SAP documentation or your organization's internal guidelines for specific procedures related to asset accounting and posting levels.
  
  
  Seek Help from SAP Support: If you are unsure about the implications of reversing transactions or changing the posting level, it may be wise to consult with your SAP support team or a financial consultant who specializes in SAP FI-AA.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as AS01 (Create Asset), AS02 (Change Asset), AS03 (Display Asset), AB01 (Post Asset Document), and AB08 (Reverse Asset Posting).
  Asset Accounting Configuration: Understanding the configuration settings for Asset Accounting in your SAP system can provide insights into how posting levels are defined and managed.
  Data Integrity: Always ensure that any changes made to asset postings are compliant with your organization's financial policies and accounting standards.
  
  By following these steps, you should be able to address the UAS018 error and manage asset postings effectively in SAP.