It looks like the capability identifier, merchantIds, can now officially be interacted with using the /v1/merchantIds endpoint. Curious if /v1/appGroups or /v1/cloudContainers will be added to the official API too. Fastlane currently supports these endpoints with the cookies authentication system. Unlike many endpoints, these ones are specifically required to ensure that apps with certain entitlements have correct remote settings otherwise the xcodebuild will fail. Appreciate any input here, thanks!

I'm using App Store Connect API to automate onboarding/off-boarding user invitations for my team members when they start working on my app. Once devs join the team, I'd like to invite them to the specific app's beta test group. This requires some additional work after the user has joined the team because unlike visibleApps, there's no way to initially indicate the beta test groups that a user should have access to. One challenge I'm finding is that people don't immediately join the team on time so polling feels a bit excessive/wasteful. Is there some recommended mechanism for adding users to the internal test flight group, or is there a way to trigger a webhook when the list of users is updated. I noticed that there's a new /v1/marketplaceWebhooks API so I imagine this is the recommended format for registering callbacks. Any assistance here would be greatly appreciated.

The endpoint /v1/betaAppReviewSubmissions supports post and get requests for creating and querying beta app store review submissions but I would like to be able to withdraw submissions by making a delete request like you can on the website and when using cookies authentication to the same endpoint with tools such as with Fastlane. Is this API intentionally missing in the official API or is it something that could be added?