---
title: "Define the SLA calculation scope"
canonical: "https://support.appfire.com/space/TTS/48334013/Define%20the%20SLA%20calculation%20scope"
format: markdown
---
> Macro (aura-html)

Time to SLA ensures consistency across all SLAs by recalculating them for every work item event. However, not all projects or work item types may require SLAs. Instead of filtering them out using JQL in each SLA definition, you can completely exclude these projects or work item types from SLA calculations.

To refine the scope of your SLA calculations, Time to SLA offers two filtering options:

- **Whitelist**: Includes only the specified projects and work item types in SLA calculations.
- **Blacklist**: Excludes the specified projects and work item types from SLA calculations.

These filters allow you to tailor SLA calculations to the specific needs of your organization.

## How it works

### Whitelist

When you define a Whitelist, only the specified projects and work item types will trigger SLA calculations. Work items that do not match these rules will be excluded, and the SLA Panel will not appear for them.

> ℹ️ **Example**:
> ℹ️ 
> ℹ️ If the Whitelist includes the project *Appfire Service Desk* and the work item types *Task* and *Subtask*, SLA calculations will occur only for those work items. The SLA panel will not appear in other projects or for other work item types.
> ℹ️ 
> ℹ️ ![image](media://fa67d0a0-504e-4e7e-a32c-c8378070ff9b)

### Blacklist

When you define a Blacklist, the SLAs will apply to all projects and work item types *except* those specified in the Blacklist rules.

> ℹ️ **Example**:
> ℹ️ 
> ℹ️ - If the Blacklist specifies the project *Enterprise Applications*, SLAs will be excluded from this project.
> ℹ️ - You can also define *Issue Types*, which would mean your SLAs will appear on every work item except those you've defined in the project.

### **Combining Whitelist and Blacklist**

If both Whitelist and Blacklist rules are applied, **Blacklist rules take precedence** over Whitelist rules.

> 📝 If you use Whitelist and Blacklist rules together, blacklist rules will precede whitelist rules.