&1: &2 Contract (&3) and valuation object (&4) are different

What causes this issue?

The profit center or business area is different in the contract and the
valuation object.

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 whether you really want to use different profit centers/business
areas for the valuation. Under certain circumstances, this can lead to
problems during closing with regard to profit center and segment
reporting or business area financial statements.

Procedure for System Administrators

If this is intentional, you can set the error message to a warning.
INCLUDE RECA_CUSTOMIZED_MESSAGE_INFO OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.