Data models use feature rule IDs to manage feature rules, rule group members, and parameters. Feature rule IDs are not unique, but they lie within certain ranges.
IDs are assigned according to the groups described in the following table. Default and custom server-side feature rule IDs are in the range 1 – 7999. When they are created, an arbitrary ID is assigned to client-side feature rules in the range 8000 – 9999. If you create you own feature rules, their IDs must be 10000 or greater.
| ID | Description |
| 1-999 | Default server-side feature rules. |
| 1000-7999 | Custom server-side feature rules that are provided for specific modules or customers, for example: 1200 – 1219 for Wastewater. |
| 8000-9999 | Client-side feature rules. |
| 10000+ | Server-side feature rules developed by customers and business partners. |