I'm excited to see new collaboration features coming to the platform but the lack of context being applied to comments makes them not very useful and will require very specific training and notice for users to make sure they do not share sensitive information with other users. A specific example is incentive compensation where your selective access is specific to your own pay. Since everything else in Anaplan is context-driven, a user could very easily comment on the card thinking it was specific to the context selection and not just associated with the card.
A few features that would address the security concern here:
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