Create a Find Gap query · SN Doc Reader

Create a Find Gap query from the CMDB 360 dashboard in CMDB Workspace to help you find CIs that are not being reported by a discovery source.

Before you begin

Role required: sn_cmdb_user and either cmdb_ms_admin or cmdb_ms_editor

About this task

Gaps in discovery source reporting occur when at least one discovery source reports on the CI and another doesn't, enabling you to identify discovery sources that might have an issue.

Procedure

Navigate to Workspaces > CMDB Workspace > Insights. In the Insights page navigation panel, select CMDB 360.
Select Create Query.
Select I want to find gaps in data between discovery sources.
Select the CI classes that you want to check for gaps.
Select Continue.
Select non-reporting discovery sources.

A non-reporting discovery source is a discovery source that doesn't report CIs as expected. Multiple non-reporting discovery sources have an OR condition with each other.
Select one or two reporting discovery sources.

These discovery sources report the CI as expected and act as a baseline for identifying the gap in reporting.

You can leave the Select reporting discovery sources for gap tracking prompt empty to include all discovery sources in the query.
Select Continue.

On the form, select the options:

Field	Description
Show unique CMDB 360 records	Select if you want to see only unique CMDB 360 records. Records for the same CIs from different discovery sources are consolidated.
Show CI records by discovery source	Select if you want to see records for each CI and discovery source pair.
Limit results to	Limits the query results to CIs that belong to a service or CMDB group. When you select Application Services, Technical Services, or CMDB Groups, a prompt appears where you can specify the service or CMDB group that you want the query to filter for.

Select Continue.
Enter a name and description for your query.
Select Save.

What to do next

Run the query at least once if you want to create a schedule.

On the CMDB 360 Query Results page:

If the number of results exceeds the number of results appearing on the page:
- Select Load More Results: To show the next page of results. The number of results that appear on each result page is specified by the glide.identification_engine.multisource.query.batch.limit system property (100 items by default).
- Select Load All Results: To show all results, up to the limit specified by the glide.identification_engine.multisource.query.max.limit system property (10000 by default).
- Select a CMDB 360 Source link to easily access preview data of a source and see more details.
You can select Create Schedule to set up a schedule that runs your query on a regular basis. Scheduling your query enables you to use the query results in reports you create.
After creating a schedule, you can select Create Report to configure a report that you can manage using Reporting capabilities.
On the Query Results page, access a record to view further details.

title	Create a Find Gap query
description	Create a Find Gap query from the CMDB 360 dashboard in CMDB Workspace to help you find CIs that are not being reported by a discovery source.
locale	en-US
canonical_url	https://www.servicenow.com/docs/r/servicenow-platform/configuration-management-database-cmdb/workspc-mltsrc-query-find-gap.html
release	brazil
product	Configuration Management Database \(CMDB\)
classification	configuration-management-database-cmdb
topic_type	task
last_updated	2026-09-10
reading_time_minutes	2
breadcrumb	CMDB 360 experience in a workspaceCMDB 360Configuration Management Database \(CMDB\)Configuration ManagementExtend ServiceNow AI Platform capabilities