cross-account-lambda access securely

Destination Account

1. Create STS assume role

2. Assign policies to invoke Lambda Function in Destination account

Note: Created Cloudformation template for reference destinationaccount.yaml

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Source/Central Account

1. Provide DestinationLambdaARN

2. Provide DestinationRoleArn

Note: Created Cloudformation template for reference sourceaccount.yaml