---
title: Add a custom column to the staging table
description: Add a custom column to the SG OT Excel Stagings \(sg\_ot\_excel\_staging\) table to store an additional value imported from the Microsoft Excel spreadsheet.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/operational-technology/operational-technology-manager/add-custom-column-staging-table.html
release: australia
product: Operational Technology Manager
classification: operational-technology-manager
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 2
keywords: [staging table, custom column, dictionary entry]
breadcrumb: [Configuring the Service Graph Connector for Microsoft Excel, Service Graph Connector for Microsoft Excel, Use, Operational Technology Manager, Operational Technology]
---

# Add a custom column to the staging table

Add a custom column to the SG OT Excel Stagings \(sg\_ot\_excel\_staging\) table to store an additional value imported from the Microsoft Excel spreadsheet.

## Before you begin

Role required: ot\_excel\_import\_user

## Procedure

1.  Create a column in the SG OT Excel Staging table.

    1.  Navigate to **All** > **System Definition** > **Tables**.

    2.  Find and select the **SG OT Excel Staging** table record.

        **Note:** Use the filter conditions to help you locate the SG OT Excel Staging table record. For example, you can set a filter of **\[Label\] \[contains\] \[SG OT Excel\]**.

    3.  On the **Columns** tab, select **New**.

    4.  In the **Type** field, select **String**.

    5.  In the **Column label** field, enter a label for the new column.

        The **Column name** field value is generated from the column label.

    6.  In the **Max length** field, enter the maximum number of characters for the column.

        For example, `100`.

    7.  Select **Submit**.

    After refreshing the SG OT Excel Staging table record, the new column appears under the **Columns** tab.

2.  Add the column to the SG OT Excel Stagings list view.

    1.  Open the **SG OT Excel Stagings** table by navigating to **All**.

    2.  In the **Filter** field, add `sg_ot_excel_staging.list` then press the Enter key.

    3.  Select the **Personalize List** \[Omitted image "gear.png"\] Alt text: icon.

    4.  Under **Available**, locate and select the column you created.

    5.  Use the **Add** arrow to add the column to **Selected**.

    6.  Select **OK**.


## Result

The column you created is now available in the SG OT Excel Stagings table.

## What to do next

Add a matching column to the SG-OT Excel Staging Import \[sn\_otsm\_sgc\_sg\_ot\_excel\_pre\_import\] table so the imported value has a source field to map from. For more information, see [Add a matching column to the pre-import table](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/add-column-pre-import-table.md).

-   **[Add a matching column to the pre-import table](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/add-column-pre-import-table.md)**  
Add a column to the SG-OT Excel Pre Import table that matches the custom column on the staging table, giving the imported value a source field for mapping.
-   **[Map the custom field in the transform map](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/map-custom-field-transform.md)**  
Map the custom source field on the pre-import table to the target field on the staging table so the imported value transforms into the correct staging column.
-   **[Complete the custom column import](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/complete-custom-column-import-sgc-excel.md)**  
Upload an updated Microsoft Excel spreadsheet to populate the custom column and complete the import.
-   **[Update the column mapping script](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/update-column-mapping-script-sgc-excel.md)**  
To transfer the custom column data to the Configuration Management Database \(CMDB\), update the column mapping script to add the corresponding entry to the **importSetColumnsVsStagingColumnsMap** object.
-   **[Configure the RTE mapping for ETL](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/complete-rte-mapping-etl-sgc-excel.md)**  
Configure the Robust Transform Engine \(RTE\) mapping for the Extract Transform Load \(ETL\). The ETL process transfers custom column data from the import set to the target Configuration Management Database \(CMDB\) class.

**Parent Topic:**[Configuring the Service Graph Connector for Microsoft Excel](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/configuring-service-graph-connector-for-excel.md)