---
sourceDocument: Xanadu ServiceNow AI Platform Administration
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/platform-administration

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# Record numbering

# Record numbering {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

In the base system, several tables are numbered, including Incident, Problem, Change
Request, and Knowledge. You can also use these numbers anywhere that script is present, for
example to generate watermarks for emails. Records in tables can be numbered
automatically.  
Administrators can manage record numbering by navigating to System DefinitionNumber Maintenance. The current number format for a table, including the prefix (such as INC for incidents or CHG for changes), is stored in a record on the Number \[sys_number\] table.Figure 1. Number table
You can renumber auto-incremented tables that extend the task table or manage numbering with a database field named Number this field.  
Note:  
If you reset numbering in Number Maintenance, it only renumbers new records. It leaves the numbering as-is for existing records in system tables.
* **[Add auto-numbering records in a table](https://servicenow-prod.fluidtopics.net/YrA26zUJ40QGm4mn5cbzcA)**   
  You can define one number format per table in the system.
* **[Prepare to left-pad number fields in custom tables](https://servicenow-prod.fluidtopics.net/jDs2vW4z33IOjDmwZo_sUw)**   
  Before you configure left padding of number fields on a custom table or a table that does not extend the task table, you must prepare business rules and script includes.
* **[Prevent numbering gaps](https://servicenow-prod.fluidtopics.net/dagwC505cV2XfQ03GVe5FQ)**   
  By default, numbers are generated every time a new record is created.
* **[Enforcing unique numbering](https://servicenow-prod.fluidtopics.net/QfGY03rw8xi3pxyywJmx4g)**   
  Although duplicate numbers are rare, numbering does not enforce uniqueness, by default.

*[\>]: and then