The Run Flows permission for the Guest User and Experience Cloud External User profiles is no longer available in new orgs, starting in Winter ’22. Without the Run Flows permission, you’re free to use the more granular permission structure embedded in Flows and give your users the detailed access they need. Run Flows will be removed from all orgs in the Summer ’22 release. To avoid future access issues, we recommend updating your existing sites to the new permission structure before the Summer ’22 release.
Where: This change applies to Aura, LWR, and Visualforce sites accessed through Lightning Experience and Salesforce Classic in Enterprise, Performance, Unlimited, and Developer editions.