Set an origin for system [&1:&2], resource type [&3]

What causes this issue?

Each system that the ILM Store addresses uses the BAdI BAdI
BADI_ILM_STOR_CLIENT to determine which origin is to be transferred to
the ILM Store. In the delivered version, this BAdI uses routing table
TILM_STOR_O_ROUT. In this table, you can tell which origin you need to
use based on the system ID, the client, the resource type, and the (IRM)
object type.
An origin either could not be determined or could not be determined
uniquely for the following parameters:
System ID: &syst-msgv1&
Client: &syst-msgv2&
Resource type: &syst-msgv3&
Object Type: &syst-msgv4&

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

System Response

If the SAP ILM Store is addressed, it is mandatory that an origin is
transferred. In the current case, the store rejects the request.

How to fix this error?

If you do not use the SAP ILM Store, you can ignore this notification
and do not have to do anything.
Implement the mentioned BAdI in a way that is suitable for your purposes
and/or make the necessary entries in the routing table.
A minimum entry consists of a system ID and an assigned origin.
The resource type can have the following values:
C: ADK Store - Collection
R: ADK Store - ADK File
A: Storage via ArchiveLink

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.