Product cost collector & has no results analysis key

What causes this issue?

No <DS:GLOS.results_analysis_key>results analysis key</> has been
entered in <DS:GLOS.product_cost_collector>product cost collector</>
&V1&. The results analysis key is proposed through the order type. The
results analysis key contains control parameters for the calculation of
<DS:GLOS.work_in_process>work in process</>.

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 entries and enter a results analysis key in the product cost
collector if necessary.
Enter the results analysis key as a default value in the order type if
appropriate.

Error message extract from SAP system. Copyright SAP SE.