Trans. type & allowed only for assets u. const. Please correct.

What causes this issue?

Transaction type &V1& is only allowed for assets that permit
line item settlement. Such assets are usually assets under
construction.
Transaction type &V1& takes over values from the past that are
identified as cumulative values at the beginning of the fiscal year.

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?

Please use transaction types for the current year for the takeover
of your transactions.
The transaction types for old assets date takeover can only be used
for the takeover of cumulative acquisition costs, and for downpayments
for line item settlement of assets.

Error message extract from SAP system. Copyright SAP SE.