In the GraphQL API I was able to run collectionCreate through the Bulk Operation feature just fine but collectionUpdate throw back an error saying it’s not whitelisted.
Thanks for getting in touch! So yes, that’s correct, I can confirm that as per the code at the moment, collectionUpdate isn’t available to be run as part of a bulk mutation.
That said, I’ll make this known to the custodians of the component that there is demand for it. Any further updates I’ll be sure to communicate them here, or alternatively they will be communicated via our Developer Changelog. Hope that helps explain more at least!