Automatic usage decision is not possible; process the open lots

What causes this issue?

You have not chosen any coding for the automatic usage decision. For
this reason, open inspection lots for the study cannot be closed
automatically. Instead, they have to be processed manually.
The inspection lots to be processed are listed in the information mail
to the project manager.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.