*Value Statement*

As a Verizon customer, I need to verify the complete migration flow from Blue Hub (ACM 2.13) to Green Hub (ACM 2.15) including cluster migration and IBU upgrades so that we can confidently migrate our production environment.

This story tests the complete migration scenario: Blue Hub → Green Hub → Migrate all managed clusters → IBU clusters from OCP 4.18 to 4.20 → Delete Blue Hub.

*Definition of Done for Engineering Story Owner (Checklist)*

• Complete migration flow tested successfully
• Blue Hub (ACM 2.13) to Green Hub (ACM 2.15) migration verified
• All managed clusters migrated successfully
• IBU clusters upgraded from OCP 4.18 to 4.20
• Blue Hub deletion process validated
• Test results documented

*Development Complete*

• [ ] The code is complete.
• [ ] Functionality is working.
• [ ] Any required downstream Docker file changes are made.

*Tests Automated*

• [ ] Unit/function tests have been automated and incorporated into the build.
• [ ] 100% automated unit/function test coverage for new or changed APIs.

*Secure Design*

• [ ] Security has been assessed and incorporated into your threat model.

*Multidisciplinary Teams Readiness*

• [ ] Create an informative documentation issue using the Customer Portal Doc template that you can access from [The Playbook](https://docs.google.com/document/d/1YTqpZRH54Bnn4WJ2nZmjaCoiRtqmrc2w6DdQxe_yLZ8/edit#heading=h.9fvyr2rdriby), and ensure doc acceptance criteria is met.

Call out this sentence as it's own action:

• [ ] Link the development issue to the doc issue.

*Support Readiness*

• [ ] The must-gather script has been updated.

—
*Description updated to follow ACM Story template. Generated with Claude Code - https://claude.com/claude-code*