---
sourceDocument: Australia ServiceNow AI Platform Administration
sourceDocumentLink: https://www.servicenow.com/docs/r/australia/platform-administration
Release :
- australia
ft:locale :
- en-US
ft:publication_title :
- Australia ServiceNow AI Platform Administration
ft:clusterId :
- platadm
bundleId :
- platadm
workflow :
- Platform
---
# Grandfathered and exempted tables
# Grandfathered and exempted tables {#ariaid-title1}
Release version: Australia
Updated March 12, 2026
 2 minutes to read
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## Summary of Grandfathered and Exempted Tables
This content explains the special handling of grandfathered and exempted custom tables within ServiceNow instances, highlighting their impact on subscription entitlements and management.
Understanding these distinctions is crucial for managing custom table licenses effectively and ensuring compliance with your organization's ServiceNow contract.
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## Grandfathered Tables
* **Definition:** Grandfathered tables are legacy custom tables preserved through a one-time license migration process, allowing organizations to retain previous custom table entitlements without counting against new subscription limits.
* **Key Characteristics:**
* They are assigned based on legacy subscription entitlements and contractual migration terms.
* Once assigned to a grandfathered subscription, these tables cannot be transferred, reused, or converted to other table types.
* If a grandfathered table is deleted, it cannot be replaced by classifying another table as grandfathered.
* Deleted grandfathered tables remain recorded in the Custom Table Inventory.
* **Management:** To view grandfathered tables, use the filter `uacustomtableinventory.list` and filter by allotment type "Grandfather".
* **Subscription Mapping:** In instances with both grandfathered and new custom tables, grandfathered tables must be mapped to a grandfathered subscription, and other custom tables to their respective subscriptions. Assistance for mapping is available through Customer Service and Support.
* **Example Scenario:** An organization with 25 grandfathered table entitlements and three new subscriptions totaling 55 custom table entitlements results in an aggregate entitlement of 80 custom tables. Once assigned, grandfather subscription allocation is final and irreversible.
## Exempted Tables
* **Definition:** Exempted tables are specific custom tables that do not count against subscription entitlements.
* **Typical Use:** These are mostly custom extensions of certain system-related tables (e.g., `sysportalpage`, `sysuserpreference`) used to enhance operational functionality in production instances.
* **Viewing:** To see exempted tables, use the filter `uaexemptedtableinventory.list`.
* **Legal Considerations:** The official Custom Table Guide legal schedule defines exempted tables, and enforcement depends on contract execution dates. Historical versions of this guide are available for reference.
Grandfathered and exempted custom tables are treated differently than other custom tables on your instance. Refer to your organization's ServiceNow® contract for additional information.
## Grandfathered tables {#grandfathered-and-exempt-tables-v2__section_hhx_zt1_3nb}
Depending on your organization's legacy subscription entitlements and contractual migration, grandfathered tables might be allotted to your production instance. Grandfathered table entitlements enable preservation of your
organization's previous custom table entitlements through license migration. This one-time process ensures that custom tables that currently exist in a production instance don't count against your new custom table
entitlements.
Grandfathered custom tables can't be transferred, reused, or otherwise classified as another custom table type. If you delete a grandfathered custom table, you can't classify any other custom table as a grandfathered custom
table to take its place. Once a custom table has been associated with a grandfathered table subscription, it remains in the Custom Table Inventory even if the table is deleted from the instance.
To view your grandfathered tables, enter ua_custom_table_inventory.list in the filter navigator, and then add a filter with the condition \[Allotment type\] \[is\] \[Grandfather\].
If you have a combination of custom tables and grandfathered tables in one application, the grandfathered tables must be mapped to a grandfathered table subscription and the remaining custom tables to one other subscription.
Reach out to Customer Service and Support for help mapping a grandfathered table to a grandfather table subscription.
## Grandfathered tables on an instance {#grandfathered-and-exempt-tables-v2__example_prf_ky1_3nb}
Scenario: Your organization purchases three new subscriptions with entitlements for a total of 55 App Engine Starter custom tables (formerly Bundled Custom Tables). To ensure your organization doesn't lose the previous custom
table entitlements, a grandfather subscription with an entitlement for 25 grandfathered tables is allotted to your instance. This subscription requires support to identify and map the existing 25 tables. These subscriptions
result in a total custom table entitlement of 80. Once a custom table has been assigned to the grandfather subscription there is no option to revert this.
{#grandfathered-and-exempt-tables-v2__table_qrf_ky1_3nb__entry__3}
| Subscription | Number of custom table entitlements | Number of mappable tables |
|:-:|:-:|:-:|
| Grandfathered subscription | 25 | 25 |
| New Subscription 1 | 25 | 25 |
| New Subscription 2 | 25 | 25 |
| New Subscription 3 | 5 | 5 |
[Table 1. Multiple subscriptions with grandfathered and custom table entitlements]
{#grandfathered-and-exempt-tables-v2__table_qrf_ky1_3nb}
## Exempted tables {#grandfathered-and-exempt-tables-v2__section_jfz_ky1_3nb}
Exempted tables are custom tables that do not count towards your subscription entitlements. These tables consist mostly of custom extensions of certain system-related tables, such as sys_portal_page and sys_user_preference, that
you extend for operational improvements in your production instance.
To view a list of exempted tables, enter ua_exempted_table_inventory.list in the filter navigator.
The [Custom Table Guide legal schedule](https://www.servicenow.com/content/dam/servicenow-assets/public/en-us/doc-type/legal/custom-table-guide.pdf) provides the complete definition of which tables are considered exempt.
Note:
Legal schedules are enforced based on when the contract is executed.
To find past versions of the Custom Table Guide, see the [Legal Schedules Custom Table Guide](https://www.servicenow.com/schedules-archived.html).