What is the function of the 'Report Builder' in Adobe Analytics?

The function of the 'Report Builder' in Adobe Analytics is to automate the creation of reports and dashboards directly in Excel. This tool is particularly useful for users who need to extract data from Adobe Analytics on a regular basis and prefer to work within the familiar environment of Excel. Report Builder allows users to build custom queries, include various metrics and dimensions, and create comprehensive reports that can be updated automatically with new data. This streamlines the reporting process, saving time and reducing the need for manual data manipulation.

The other choices do not accurately describe the purpose of Report Builder. It is not designed for managing user permissions, creating custom user interface elements, or facilitating live chat interactions. Each of these functions is handled by different tools or features within the Adobe Analytics ecosystem, highlighting the specialized nature of Report Builder for report generation and data analysis.