Stack Launch Failed - AccessDenied for StreamResourceProvisioner

[vatsalshah1990]

Lambda function for StreamResourceProvisioner fails with AccessDenied exception causing the stack to rollback.

Here are the cloudwatch logs for the same:
{ "Status": "FAILED", "Reason": "See the details in CloudWatch Log Stream: 2019/12/03/[$LATEST]1ac14ac3aa7f44ffb57ad60007206699", "PhysicalResourceId": "2019/12/03/[$LATEST]1ac14ac3aa7f44ffb57ad60007206699", "StackId": "arn:aws:cloudformation:ap-south-1:864043271127:stack/SmartAdEngine-20191203/edf72bb0-15c9-11ea-9a40-0a95c9550e3e", "RequestId": "aff3b66f-2753-4761-b7d2-25572b75b15c", "LogicalResourceId": "StreamResourceProvisioner", "Data": { "Error": { "message": null, "code": "AccessDeniedException", "time": "2019-12-03T12:40:35.844Z", "requestId": "355060ef-0e99-40a4-a046-0747cf2bac91", "statusCode": 400, "retryable": false, "retryDelay": 7.615761158881429 } } }