AWS Account Migration - Steps for some of the services to migrate from one AWS Account to other

1) Login into AWS account and go to BillingDashboard and find out list of services used.  

Note : There will be charge either 0$ or x$ for used services.

2) Go to VPC dashboard and understand VPC (custom), ElasticIps, Security Group, subnets and create the same in another account (target account you want to migrate)

3) EC2 Instance Account Transfer : https://aws.amazon.com/premiumsupport/knowledge-center/account-transfer-ec2-instance/

4) RDS account Transfer : https://aws.amazon.com/premiumsupport/knowledge-center/account-transfer-rds/

Note : Only manual snapshot backup can be shared and restored.

5) Acount transfer S3 Objects : https://aws.amazon.com/premiumsupport/knowledge-center/account-transfer-s3/

Note : aws s3 sync s3://sourceBucket  s3://DestinationBucket  --profile AccountAAdmin --profile AccountBAdmin 

Please make sure the destinationBucket name is different as its unique. Sometimes we try to provide same assuming copy. 

Followed example from AWS : http://docs.aws.amazon.com/AmazonS3/latest/dev/example-walkthroughs-managing-access-example2.html

Once copied delete bucket commands : http://docs.aws.amazon.com/cli/latest/userguide/using-s3-commands.html

6) ELB : Create LoadBalancer target Group and other details in new account from the existing account. 

7) Lambda, Lex, elasticBeanStack you need to configure the same in new account and copy the code from the old aws account.