Are there any restrictions for external collaborators?
External collaborators do not have the same permissions as collaborators linked to git providers.
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External collaborators cannot link Chromatic projects to a git provider.
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External collaborators cannot manage the account-level settings. e.g. Billings.
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External collaborators cannot create new projects.
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External collaborators have access only to the project to which they are invited. They don’t have access to all projects in an account.