Change Manager, a capability of AWS Systems Manager, helps customers request, approve, implement, and report on operational changes to their application configuration and infrastructure on AWS and on premises. With this launch, customers can now set a required number of approvers for a change request before adding all eligible approvers. This provides requesters with additional flexibility to add multiple approvers for the request and get the change approved as soon as the required number is achieved. For example, customers can require three approvals for a level but specify up to five approvers. Approvals from any three of those approvers are sufficient to approve the level.
Source:: Amazon AWS