AWSApplicationMigrationNetworkMigrationCustomResource

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Summary

Provides permissions for Network Migration custom resource

Permissions imported from the AWS Managed Policy Reference Guide; other sections pending editorial review.

Identity

ARN: arn:aws:iam::aws:policy/AWSApplicationMigrationNetworkMigrationCustomResource
Default version: v3
Created: 2025-11-05
Last edited: 2026-02-12
Services: ec2

Control-plane actions (1)

By access level: 1 Write.

Control-plane actions by service
Service	Granted	Access levels and limits	Granted by
EC2	1 of 834	1 Write; 1 restricted, 1 conditional	ec2:ModifyTransitGateway

EC2: 1 actions

ec2:ModifyTransitGateway (Write)

Data-plane actions (0)

By access level: none.

This policy grants no actions in this plane.

Excluded and conditional actions

No patterns are excluded by NotAction or Deny statements.

Resource scope and attachment

Resource scope across granted actions: scoped.

Can be attached: Yes, to users, groups and roles.

Why this tier

Grants 1 write, tagging or permissions-management action, short of full control of any service.

Guidance

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Same service

Same domain

Frequently asked questions

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Policy JSON

Download policy.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "ModifyTGW",
      "Effect": "Allow",
      "Action": [
        "ec2:ModifyTransitGateway"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:transit-gateway/*",
        "arn:aws:ec2:*:*:transit-gateway-route-table/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/CreatedBy": "AWSApplicationMigrationService"
        }
      }
    }
  ]
}

Version history

Current version v3, edited by AWS on 2026-02-12. Version history is recorded from 2026-11-11. Earlier versions are in the IAM console under Policy versions.

Attach snippets

AWS CLI

aws iam attach-role-policy --role-name ROLE_NAME --policy-arn arn:aws:iam::aws:policy/AWSApplicationMigrationNetworkMigrationCustomResource
aws iam attach-user-policy --user-name USER_NAME --policy-arn arn:aws:iam::aws:policy/AWSApplicationMigrationNetworkMigrationCustomResource
aws iam attach-group-policy --group-name GROUP_NAME --policy-arn arn:aws:iam::aws:policy/AWSApplicationMigrationNetworkMigrationCustomResource

CloudFormation

Resources:
  ExampleRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument: {}  # replace with your trust policy
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AWSApplicationMigrationNetworkMigrationCustomResource

Terraform

resource "aws_iam_role_policy_attachment" "awsapplicationmigrationnetworkmigrationcustomresource" {
  role       = aws_iam_role.example.name
  policy_arn = "arn:aws:iam::aws:policy/AWSApplicationMigrationNetworkMigrationCustomResource"
}

CDK (TypeScript)

role.addManagedPolicy(
  iam.ManagedPolicy.fromAwsManagedPolicyName("AWSApplicationMigrationNetworkMigrationCustomResource"),
);

Sources

Pending editorial review. No editorial sources are listed yet.