Amazon S3 triggering another a Lambda function in another account

Question

I want to run a lambda in Account B when any object comes into Account A S3 bucket.

But I heard that we can access Lambda from the same account S3 only, for cross-ac

Answer 1

In the new S3 console, go to S3 console and open your bucket. Click on the Properties tab -> Events. You need to give S3 permission to invoke the Lambda function. Refer: configure Amazon s3 bucket to run Lambda function created in another account