---
sourceDocument: Yokohama Build or modify applications
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/application-development

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Build or modify applications

ft:clusterId :

    - cadev

bundleId :

    - cadev

workflow :

    - Development, Data, and Analytics


---

# Designate data tables in Guided Application Creator

# Designate data tables in Guided Application Creator {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Select an existing table or create a custom table in Guided Application Creator to store data for your custom business application.

## Before you begin

Complete:

1. [Create an application record in Guided Application Creator](https://servicenow-prod.fluidtopics.net/WDjf6BYwfBKh9E~0a2h_Zg "Create an application record in Guided Application Creator to identify a custom application.")
2. [Define roles in Guided Application Creator](https://servicenow-prod.fluidtopics.net/2F9MA2pRT7DkyLFPPB5oxw "Create or select roles in Guided Application Creator for the members of your organization who use your custom application.")
3. [Select user experiences in Guided Application Creator](https://servicenow-prod.fluidtopics.net/tK2mzWPwA4ZAzgUDIJcgXA "Let users access your application via the ServiceNow Agent mobile app or lists and forms.")
{#gac-designate-data-table__ol_kpp_kkb_5hb}

If you plan to create a custom data table, review the [Data table guidelines for Guided Application Creator](https://servicenow-prod.fluidtopics.net/ZYwAs4sjcNpgW7rz6Xwjzg#gac-tables "When you create an application in Guided Application Creator, you can optionally create a data table for your application. To ensure that you are within the limits of your subscription and that your application performs as expected, consult the data table guidelines before you create a data table.") to ensure that your system performs as
expected after you create a table.

Role required: sn_g_app_creator.app_creator or admin

## About this task

<br />

<br />

## Procedure

Designate data tables for your application.  
You can select existing tables or create custom tables.

| Option | Procedure |
| Select an existing table without creating a custom table | 1. In the Tables field, enter the table name. 2. On the list, select the table name. 3. Select Done with tables. {#gac-designate-data-table__ol_aqk_1yd_vhb} |
| Create a custom table without selecting an existing table | 1. Select Create new table. 2. Select a table creation method. 3. Follow the steps for the table creation method that you selected. * [Upload a spreadsheet in Guided Application Creator](https://servicenow-prod.fluidtopics.net/eqbBaFhLBLAomZ77aOvDfQ "Turn your spreadsheet into a custom table in Guided Application Creator to store data for your custom application.") * [Extend a table in Guided Application Creator](https://servicenow-prod.fluidtopics.net/~zWTYhkSbkdU55jCcvnhJA "Extend a table in Guided Application Creator to create a custom table that copies an existing table. You can add more fields to your child table.") * [Create a table in Guided Application Creator](https://servicenow-prod.fluidtopics.net/o0SH3l6ZCNgmcAfG5fRVyQ "Create a table in Guided Application Creator to customize your application to fit your business needs.") {#gac-designate-data-table__ul_p5m_xyd_vhb} {#gac-designate-data-table__ol_jwd_vyd_vhb} |
| Select an existing table and then create a custom table | 1. In the Tables field, enter the name of the existing table to designate for your application. 2. On the list, select the table name. 3. Select Create new table. 4. Select a table creation method. 5. Follow the steps for the table creation method that you selected. * [Upload a spreadsheet in Guided Application Creator](https://servicenow-prod.fluidtopics.net/eqbBaFhLBLAomZ77aOvDfQ "Turn your spreadsheet into a custom table in Guided Application Creator to store data for your custom application.") * [Extend a table in Guided Application Creator](https://servicenow-prod.fluidtopics.net/~zWTYhkSbkdU55jCcvnhJA "Extend a table in Guided Application Creator to create a custom table that copies an existing table. You can add more fields to your child table.") * [Create a table in Guided Application Creator](https://servicenow-prod.fluidtopics.net/o0SH3l6ZCNgmcAfG5fRVyQ "Create a table in Guided Application Creator to customize your application to fit your business needs.") {#gac-designate-data-table__ul_tqg_4yd_vhb} {#gac-designate-data-table__ol_m11_cyd_vhb} |
|-|-|

{#gac-designate-data-table__choicetable_phv_sxd_vhb}

## What to do next

Continue building your application by following the steps in [Customize user experiences in Guided Application Creator](https://servicenow-prod.fluidtopics.net/~xcqboVI6ZzPASZicytZXw#gac-customize-ux "Customize how the application appears in each user experience that you select."). If you exit Guided Application Creator,
the data tables that you designated are not saved to your application.
* **[Upload a spreadsheet in Guided Application Creator](https://servicenow-prod.fluidtopics.net/eqbBaFhLBLAomZ77aOvDfQ)**   
  Turn your spreadsheet into a custom table in Guided Application Creator to store data for your custom application.
* **[Extend a table in Guided Application Creator](https://servicenow-prod.fluidtopics.net/~zWTYhkSbkdU55jCcvnhJA)**   
  Extend a table in Guided Application Creator to create a custom table that copies an existing table. You can add more fields to your child table.
* **[Create a table in Guided Application Creator](https://servicenow-prod.fluidtopics.net/o0SH3l6ZCNgmcAfG5fRVyQ)**   
  Create a table in Guided Application Creator to customize your application to fit your business needs.