Profit center &/& is locked for the date &

What causes this issue?

Profit center &V2& is locked on the date specified.

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?

Check your entry.
Note
The profit center is usually derived from the original object posted to
(cost center, order, and so on) or based on additional information such
as the product number. If you want to post to this profit center, you
must unlock it for the desired date.

Error message extract from SAP system. Copyright SAP SE.