The Flows service is currently transitioning to a new method of checking whether a user has access to a subscription. In the interim, i
f you have a subscription and would like to create managed flows, please open a ticket with sup...@globus.org
and we can add you to a group that will grant the proper privileges without needing to supply a subscription_id explicitly. Once the transition is complete, we plan to support providing the subscription_id via both the Globus CLI and Globus SDK, but in most cases it will be set for you automatically if you have a subscription.