Notifications does not exist for above Invalid Source IDs

What causes this issue?

Possible reasons could be:
1. No notification found for the combination of source id, type key,
type version, provider id which are provided and the maintained backend
system alias.
2. There are no notifications for the given input.

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.