For a Backend workflow to work like this, make sure that the ‘run without authentication’ is checked and the ONLY WHEN condition doesn’t require any user data.
You can make this work by creating a backend workflow with the ‘exposed as external API’ unchecked and ‘run without authentication’ checked.
To get this to work as you want it to, you first need to make sure the user’s email address is getting captured. So, somewhere on your form you need to capture that email address.
Then in the Backend workflow add a Parameter key that is type text and label it something like ‘user-email’. No need to worry about any checkboxes for ‘Expose as Public API workflow’ as this is used if you want to provide other applications an ability to trigger the workflow from that app. No need to worry about checking ‘run without authentication’ as that is also associated with allowing other apps to access and trigger the workflow. And no need to worry about ‘ignore privacy rules’ unless any data you may be using in the workflow has privacy rules, but seems like there is none.
If there is other data you want to capture and send along, you can create other key parameters for those values.
If you have the form data saved in the database then you could just send the key parameter as that data type and make things easier to utilize all data from the form.
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Thank you for your detailed response including screen shots. Very Helpful.
For my specific situation it was the privacy settings. Once I clicked “Ignore privacy rules…” then it worked just fine.