Do not assign to project (not active in CO area & and FYear & )

What causes this issue?

You assigned an account to a project, although projects are not active
for controlling area &V1& in fiscal year &V2&.

System Response

This posting is not allowed.

How to fix this error?

Activate Project Cost Accounting for fiscal year &V2& using CO
configuration

Error message extract from SAP system. Copyright SAP SE.