This blog post provides tips and code examples for engineers using AWS to set up serverless instrumentation with New Relic, a monitoring tool. The example three-tiered application includes API Gateway, Lambda, and Amazon Relational Database Service (RDS). It offers guidance on instrumenting serverless functions and debugging strategies using Lambda layers or manual instrumentation in New Relic. Monitoring serverless applications is crucial for identifying and responding to issues, optimizing resource utilization, and improving performance. The step-by-step guide sets up the AWS integration, installs the New Relic AWS integration, configures the budget policy, and enables function logs. It also provides an example of how to instrument a Lambda function using the serverless framework and demonstrates how to troubleshoot common issues. With proper instrumentation, developers can gain better visibility into their serverless functions, identify performance issues, locate the source of errors, and optimize their function's performance.