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What are User Groups in Ads Config and where do they sit in the priority hierarchy?
Enki
**Source:** [Configuring Ads in Game Server](https://tripledotstudios.atlassian.net/wiki/spaces/KB/pages/2765029415)
## User Groups in Configuration Hierarchy
User Groups serve as an intermediate configuration layer with a specific priority order:
**Priority Hierarchy (Highest to Lowest)**:
1. **Overrides**: Highest priority
- Take precedence over all other settings
- Ensure specific configurations are applied when explicitly defined
2. **User Groups**: Second priority
- Provide a flexible layer for tailoring configurations to specific user segments
- Allow multiple configurations for a single setting in one centralized location
3. **Base Configurations**: Lowest priority
- Act as default settings
- Applied when no Overrides or User Groups are applicable

## Key Characteristics of User Groups
### How User Groups Apply
- Activated when no Overrides or Experiments are present
- System checks which User Group a user belongs to based on defined rules
- Applies settings specific to that user group
### Priority Resolution
- If a user matches multiple User Groups, the group with the **highest numeric priority** is selected
- Higher numbers indicate higher priority (e.g., priority 100 > priority 50)
### Availability
- Impact both Live and Test configurations
- Can be configured for specific settings in Ads Configuration
## Creating User Groups
1. Navigate to Base Ads Configuration
2. Click **User Groups** button next to a specific setting
3. Add a new group with:
- Unique name
- Status (Active/Inactive)
- Optional labels and notes
- Defined rules for user segmentation

## Important Constraints
- Cannot disable a setting if User Groups exist
- User Groups can only be configured after an Audience Group is saved
- Provides a powerful way to create targeted ad experiences for different user segments