Message type: E = Error
Message class:  U6 - Message Class for BRE 
Message number: 060
Message text: Document &1 already reversed
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Check if the entry still has to be processed. To do this, call up the
BRE for installation &V2&. This updates all entries for installation
&V2& in the error extract table.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message U6060, which states "Document &1 already reversed," typically occurs when you attempt to reverse a financial document that has already been reversed in the system. This can happen in various SAP modules, such as Financial Accounting (FI) or Controlling (CO).
Cause: Duplicate Reversal Attempt: The most common cause is that the document you are trying to reverse has already been reversed previously. Incorrect Document Number: You may be trying to reverse the wrong document number or have entered the document number incorrectly. Document Status: The document may be in a status that does not allow for further reversals, such as being locked or already processed in a subsequent period.
Solution: Check Document Status: Verify the status of the document you are trying to reverse. You can do this by using transaction codes like FB03 (Display Document) to see if the document has already been reversed. Review Reversal History: If the document has been
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