---
sourceDocument: Australia Telecommunications Network Inventory
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/telecom-network-inventory

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia Telecommunications Network Inventory

ft:clusterId :

    - telninv

bundleId :

    - telninv

workflow :

    - Customer and Industry


---

# Customize overlays on the floor map

# Customize overlays on the floor map {#ariaid-title1}

Release version: Australia  
Updated March 12, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read  
Update the decision table to configure the overlays appearing on the floor map. You can view the operational data of the datacenters as overlay on the floor map in the Telecommunications Network Inventory application.

## Before you begin

Role required: admin, sn_ni_core.inventory_admin

## About this task

When you select an overlay and time duration on the floor map, the system uses TNI Data Center Overlay Configuration decision table to determine the corresponding operational data. The decision table
pulls the average metric value for each Configuration Item (CI) over that duration from ClothoDB. Based on the value, the system assigns the predetermined color code. The floor map updates with these colors, so you can
quickly see the status of operational status of each CI.

For example, when you select Temperature overlay and time duration as Past 3 hours, the system automatically collects the data from ClothoBD. If the current time is 9:00 PM, the
system queries data from 6:00 PM to 9:00 PM. Clotho returns the average metric value for each CI over that duration. This average is then evaluated against the decision table to determine the corresponding range and
associated color code. Finally, each CI is visually updated on the floor map using that color, enabling you to understand the health of the datacenters.  
You can edit the overlay option in the floor map by configuring the decision table. You can add or delete an overlay option and also set up the color options.  
Note:  
Decision table inputs should remain unedited. You can add or update decision table rows to customize colors or overlay ranges as needed.

## Procedure

1. Navigate to AllSystem DefinitionDecision Tables.
2. Select the TNI Data Center Overlay Configuration decision table.
3. Select Create Draft.
4. Do one of the following.

   | Action | Details |
   | Add a new overlay | 1. Select the Type field. 2. Select Choice list source as Create new choice list. 3. Type new overlay name in the Choices field. 4. Select Add. 5. Select Done. 6. In the Condition section, add the metric values and color code. {#customize-ovarlays-floor-map__ol_yk5_gbt_nfc} |
   | Edit an existing overlay | 1. Select the Type field. 2. Edit the overlay name that you want to update in the Choices field. 3. Select Done. 4. In the Condition section, edit the metric values and color code. {#customize-ovarlays-floor-map__ol_yxk_sct_nfc} |
   | Delete an overlay | 1. Select the Type field. 2. Select the delete icon (![Delete Icon.]()) to delete an overlay. 3. In the Condition section, delete the corresponding overlay rows. {#customize-ovarlays-floor-map__ol_vyg_2bt_nfc} |
   |-|-|

   {#customize-ovarlays-floor-map__choicetable_tyg_2bt_nfc}
5. Select Publish.

## Result

Customized overlay options are displayed on the floor map, and the color legend updates accordingly.

## What to do next

Set up time duration for the operational data. To learn more, see [Customize overlay time series on the floor map](https://servicenow-prod.fluidtopics.net/_~8xHIkU2XBFtNV7B~TqOg "Update the decision table to configure the time duration option on the floor map. You can view the operational data of the datacenters for a selected time range as overlay on the floor map in the Telecommunications Network Inventory application.").
**Related concepts**   

* [Capacity management](https://servicenow-prod.fluidtopics.net/B6YoQGa~dGuqYkSxHOn4xw "Capacity management in Telecommunications Network Inventory enables you to calculate the capacity of physical entities in your network. By effectively managing the capacity, you can plan, monitor, and optimize the resources to make sure that the network can meet your current and future demands efficiently.")  
**Related reference**   

* [Time series metrics for datacenter](https://servicenow-prod.fluidtopics.net/yv~C_06rXKAiH_9hnMygrQ "Use time series metrics to calculate the operational details of network assets in the Telecommunications Network Inventory application.")

*[\>]: and then