title: AWS Lambda & SNS: Invoke Lambda cross-region
body: <p>I have a Lambda function deployed to several regions. I would like to publish a message to SNS that will invoke these functions. </p>
  
  <p>Using aws-cli I've created the topics, given Lambda permission to talk to SNS, and create the subscriptions. The subscription appears to be created successfully, and I can see it in the AWS console. But, it doesn't work. The lambda function does not get invoked. </p>