Trans.with line item no. & is ignored

What causes this issue?

You posted to the asset with line item number &V1& using a transaction
that includes both prior-year acquisitions and acquisitions in the
current posting year. This transaction cannot be used to post a partial
retirement correctly.

System Response

The transaction is not included in the calculation of proportional
values.

How to fix this error?

Decide for which depreciation areas the transaction involves prior-year
acquisitions, and for which it involves current-year acquisitions.
Post separate retirements with the corresponding amounts for the
retirement of prior-year acquisitions and the retirement of
current-year acquisitions. When you make these postings, make sure that
the transactions post only to the depreciation areas as you determined
above (=> the transaction type has to be entered in table TABWA).

Error message extract from SAP system. Copyright SAP SE.