Acting on shared drives requires the Pro tier or above. Bulk actions and Bulk Query require the Enterprise tier.
Symptom
An action is visible but greyed out, with a prompt to upgrade. Or Bulk Query opens but you cannot run a job.
Cause
This is working as intended. Your tier does not include the action.
Resolution
On Essential, only View drive and Open in Google Drive are available on a shared drive. Acting on shared drives, one at a time, needs Pro or above. Bulk actions need Enterprise, and so does running a Bulk Query. On Essential and Pro you can open Bulk Query to see how it works. Speak to your CSM about upgrading.
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