How To Fix AA243 - Main asset number &1 already exists; Please enter another main asset no.

AA243 - Overview

• Message type: E = Error

• Message class: AA - Messages for Asset Accounting

• Message number: 243

• Message text: Main asset number &1 already exists; Please enter another main asset no.

What causes this issue?

You have specified a main asset number that already exists. When using
the cross-company code number assignment, the existing fixed asset can
also be in a different company code.

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?

The following options are available:
Assign a new main asset number or
create a subnumber for the existing main asset number

&NOTES&:
To create more subnumbers, use the <LS>Create Asset Subnumber</> app.
To display subnumbers, use the <LS>Display Fixed Asset</> app.

&NOTES&:
To create more subnumbers, use transaction <LS>Create Subnumber</> (<AB>
AS11</>).
To display subnumbers, use transaction <LS>Display Asset</> (<AB>AS03</>
).

Error message extract from SAP system. Copyright SAP SE.

AA243 - Details

• The SAP error message AA243 indicates that you are trying to create or modify an asset in the Asset Accounting (FI-AA) module, but the main asset number you are attempting to use already exists in the system. This typically occurs when you are trying to create a new asset or a sub-asset under an existing main asset, and the main asset number you are entering is already assigned to another asset.
  
  Cause:
  
  Duplicate Main Asset Number: The main asset number you are trying to enter is already in use for another asset in the system.
  Incorrect Data Entry: There may have been a typographical error in the main asset number you are trying to enter.
  System Configuration: The system may be configured in a way that does not allow for the reuse of main asset numbers.
  
  
  Solution:
  
  Check Existing Assets: Verify if the main asset number you are trying to use already exists in the system.