AnyCompany deploys and manages networking resources in its AWS network account, named Account-A.

Create an accelerator in Account-В. Use a cross-account role from Account-A to grant the networking team access to manage the accelerator.

Deploy a Network Load Balancer (NLB) in Account-A to route traffic to the ALB in Account-В. Create an accelerator, and set the NLB as the endpoint in Account-A.

Create a cross-account Global Accelerator attachment in Account-В for the Account-A principal. Create an accelerator in Account-A by using the shared attachment.

Create an accelerator in Account-A. Use AWS Resource Access Management (AWS RAM) to share the accelerator with Account-В. Associate the ALB in Account-В with the accelerator in Account-A.