​ To learn more, see the sources I considered: [[1] Define the information you want to extract](https://docs.retellai.com/features/post-call-analysis-create) ​

### Answer When configuring a Selector Analysis (which is used for categorizing from predefined options) , you should structure it with these fields: [(1) ]() - **Name**: A descriptive identifier for the field (e.g.,

issue_category

) - **Description**: Write the explanation of what you want extracted and how to match values. This is where you should include guidance on matching to your knowledge base values. - **Choices**: List only the individual choice values that must be matched exactly **Important**: The explanation of the choices should be written inside the description field, while the choices themselves should only contain the individual choice values. Example configuration: - **Name**:

issue_category

- **Description**: "Categorize the main reason for the call. Match the extracted value exactly to one of the predefined categories." - **Choices**:

["Technical Support", "Billing Question", "Sales Inquiry", "Product Information"]

For best results when you need exact matches to knowledge base values: 1. Be explicit in your description about requiring exact matches 2. List all valid values from your knowledge base as the choices 3. Include any context in the description about how to determine which value applies I don't have specific documentation on referencing knowledge base values directly within Post Call Analysis descriptions. If you need more advanced matching logic, you may want to check out these potentially useful sources: - [Define the information you want to extract]() - [Documentation]() Would you like a general answer based on my knowledge instead?

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.