To turn on Http callout in flows, at first I have made an external credential with authentication protocol as custom. After that, I have made a named credential, enabled it for callouts, and use the previous external credential.

After that, I made a new permission set, assigned myself in the permission and added the created External Credential Principal access.

After this, when I go to the flows I don't see the HTTP Callout option in a new Action

  • The action should be available if you have the right edition and perms: help.salesforce.com/s/…
    – identigral
    Commented Sep 22, 2023 at 15:38
  • I have added the permissions and given it to the user, but the option doesn't still pop up. I am using the professional edition. I also have lightning experience... Commented Sep 24, 2023 at 18:36
  • Professional edition isn't enough, read the doc.
    – identigral
    Commented Sep 24, 2023 at 18:40

1 Answer 1


HTTP Callout is Available in: Lightning Experience Enterprise, Unlimited, and Developer Editions. In Flow Builder, dragging the Action Element on to the canvas exposes the Action modal. There, you should see the button at the bottom left of the modal: enter image description here

  • I have added all the permissions and using the professional edition. I have the lightning experience Commented Sep 24, 2023 at 18:37

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