Perhaps somebody at Apple could work on finding a less developer-hostile way to flush out valid uses cases?
mjmsmith
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Thanks Quinn, I read your earlier replies on this subject, which were helpful. In this case, I can get by with only using an application group on the iOS side. But it's unclear to me how the existing Xcode interface (screenshot above) can be used to specify an app group for for a suite of iOS apps and sandboxed macOS apps.