AWS Lambda is a serverless compute service that executes code in response to events, with Lambda functions being the code and triggers being the events. Coralogix utilizes Lambda functions for log collection, and when logs aren't appearing as expected, several troubleshooting steps can be taken. These include checking for block rules, verifying the correct use of private keys and company IDs, ensuring filters aren't inadvertently hiding logs, and confirming the account hasn't reached its log quota. Additionally, the status page of Coralogix can provide updates on any platform issues. Users should verify the Lambda function's environment variables and triggers. If initial checks don't resolve the issue, further investigation involves using AWS's Lambda function monitoring tools to analyze error counts, success rates, invocation durations, and memory usage. If problems persist, enabling debug mode or contacting Coralogix support may be necessary.