No transactions can be reversed in fiscal year &

What causes this issue?

The function you have selected allows for the reversal of asset
transactions that have not yet been updated in the General Ledger (for
example, manually planned depreciation). You can recognize these
transactions in the asset value display screen by the fact that they do
not have document numbers. If such transactions exist for an asset,
the system lists them for you to make a selection (of course, assuming
that none have already been reversed).
The asset you have specified does not have any such transactions.

System Response

No processing is possible.

How to fix this error?

Check the transactions for your asset using the asset value display
transaction. In order to reverse transactions that have a document
number, you must use the correct reversal function
<DS:TRAN.FB08><LS>(FI Document -> Reverse).</></>

Error message extract from SAP system. Copyright SAP SE.