We implemented an additional feature within extension A, requiring dependency on extension B. This other feature will be used only by 20% of users. We don't want the remaining 80% of our users to be overwhelmed with the extension B onboarding experience, including a need to set a pricing plan. Ideally, we want to use Subscription Management API to suggest a pricing plan which should be used by default for an extension B during account setup. If users require our additional feature, we can navigate them to select another pricing plan for extension B to enable it.