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In this lesson we cover AWS Organizations and how it helps you centrally manage multiple AWS accounts. For full documentation, see the official AWS Organizations guide: https://docs.aws.amazon.com/organizations/latest/userguide/orgs_introduction.html. Why use AWS Organizations? Many teams and enterprises create separate AWS accounts for departments, teams, applications, or environments. While this separation improves isolation, it creates operational friction:
  • Billing is separated per account, complicating cost visibility and payments.
  • Administrative overhead rises: separate sign-ins, user management, and account setup.
  • Security configuration must be applied per account, increasing the risk of inconsistent posture.
  • Resource sharing is limited across accounts, which can cause duplication and higher costs.
AWS Organizations solves these problems by providing centralized account management, consolidated billing, and organization-wide guardrails. Think of an AWS Organization like a corporate headquarters: it defines policies and governance centrally while allowing individual accounts to run operations independently when needed. An AWS organization consolidates multiple AWS accounts so they can be administered as a single unit.
A diagram of AWS Organizations showing a Root and Management Account that apply Service Control Policies (SCPs) to three organizational units: Dev, Staging, and Prod, each containing account structures. On the left a user/policies flow is shown feeding into the organization.
Key components of AWS Organizations Service Control Policies (SCPs) Service Control Policies are the primary mechanism for defining organization-level guardrails. SCPs define the maximum set of actions that accounts (and the principals inside them) are allowed to perform. How SCPs work:
  • SCPs are attached to the organization root, an OU, or an individual account.
  • Policies applied at a higher level are inherited by child OUs and member accounts.
  • SCPs set a permissions boundary: even if an IAM policy in an account permits an action, an SCP can block it. SCPs cannot grant permissions that IAM policies do not also grant.
Common SCP use cases:
  • Prohibit high-cost services in non-production OUs.
  • Restrict use of specific services in particular environments.
  • Enforce cross-account security constraints consistently.
A diagram titled "Service Control Policies (SCPs)" showing a large checklist icon on the left with arrows pointing to a set of organizational units and individual accounts (labeled Dev OU, Staging OU, Prod) on the right. It illustrates how SCPs can be applied to the entire organization, specific OUs, or individual accounts.
Summary — benefits and integrations
  • Centralized account management: administer multiple accounts from one place rather than logging into each individually.
  • Consolidated billing: aggregate usage across member accounts for a single payment point.
  • Strong governance: apply SCPs at the root, OU, or account level to enforce organization-wide guardrails.
  • Service integrations: AWS Organizations integrates with other AWS services to enable unified access, auditing, and cost control.
Notable integrations: Cost: AWS Organizations itself has no additional charge. You pay for the AWS services and resources used by member accounts.
SCP vs IAM: SCPs define the maximum allowed actions at the account level (a permissions boundary). IAM policies inside an account can further restrict what a principal may do, but IAM cannot override an SCP to grant additional permissions.
Links and references

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