Parallel valuations in item &1 cannot be posted to FI

What causes this issue?

Different values are posted in parallel valuations in item &V1& in the
CO business transaction. Due to an ambiguous assignment between parallel
valuations and FI ledger groups/accounts, these items cannot be
transferred to FI.

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?

Ensure that the assignments between the accounting principle, ledger
group, and account determination are unique.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.