Cost element &1 is not assigned to a cost component in CostCompStruct &2

What causes this issue?

You have activated the actual cost component split.
No cost component has been assigned to cost element &v1& origin group
&v3& in cost component structure &v2& for chart of accounts &v4&. The
system is unable to assign the value to a cost component.

System Response

You cannot carry out posting.

How to fix this error?

Check whether for this operation the value to be posted is to be
assigned to this cost element.
If the value has been assigned to the <ZH>wrong</> cost element, you
should change the account assignment for this operation.
If the value has been assigned to the <ZH>right</> cost element, then
maintain an assignment of the cost element and origin group in
Customizing of Product Cost Planning.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.