What is necessary if the Horizontal Probe is used without a specified pattern?

When a Horizontal Probe is used without a specified pattern, the normal process of ServiceNow Discovery is altered significantly. Specifically, after the discovery process reaches the classification stage, it will not proceed any further.

The classification stage is crucial because it identifies the type of device or application being probed, and without a specific pattern, the probe loses the context needed to classify the discovered items effectively. This inability to classify means that the next steps in the discovery process cannot be executed since they depend on accurate classification to determine what actions to take with the discovered data.

Hence, under these circumstances, Discovery halts after the classification stage, leading to an incomplete process.