Caution! An investment measure was posted to the asset in current year

What causes this issue?

You want to post a complete retirement or a retirement of a new
acquisition. This is not possible, as an investment subsidy has been
posted to asset &V2& &V3& in the current fiscal year &V1&.

System Response

This is a customizable message type (IMG: Financial Accounting -> Asset
Accounting -> Transactions -> Maintain Message Types). If the message
is not customized as a warning, then the posting is rejected.

How to fix this error?

Reverse the subsidy first, then post the retirement.

Error message extract from SAP system. Copyright SAP SE.