You need to post pull request notifications from an Azure DevOps project to a Microsoft Teams channel while minimizing development effort. What is the simplest solution?

The simplest solution is to install the Azure Repos app for Teams and configure a subscription. This app is specifically designed to integrate Azure Repos notifications, including pull requests, directly into Microsoft Teams channels with minimal setup. It provides a native, out-of-the-box integration. Installing the Azure Pipelines app for Teams is incorrect because it focuses on build and release pipeline notifications, not pull requests from Azure Repos. Using Azure Automation or implementing an Azure Function would both work, but they require custom development, scripting, and maintenance, which goes against the requirement of minimizing development effort. These are more complex solutions for scenarios where the native integration doesn't meet specific, advanced needs.