Lambda can be invoked in async fashion. Behind the scene is a managed SQS queue (not visible to the user).
There are some notable differences. With SQS you have more flexibility, but it comes with extra cost and operation efforts.

Lambda can be invoked in async fashion. Behind the scene is a managed SQS queue (not visible to the user).
There are some notable differences. With SQS you have more flexibility, but it comes with extra cost and operation efforts.