SAP ArchiveLink (storage system unknown (Customizing))

What causes this issue?

A request was to be sent to an content server which is not known in SAP
ArchiveLink administration.

System Response

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

&WHAT_TO_DO& for the system administration
Check the Content repositories function in Customizing:
<DS:TRAN.OAC0>Execute function</>
&v1&
&v2&

Error message extract from SAP system. Copyright SAP SE.