I have a public form that I am collecting metadata from fields the public user's provide.

The process is simple: User submits form > Staff gets email alert > Form Is Saved to Repository (with metadata) > End

I keep getting an error at the Save to Repository step with "Access Denied".  I found if I give the ProcessAutomationUser full access to the metadata field it still fails.  However, if I give the Everyone user Read and Add permission to the metadata field then the process is successful. The metadata field has sensitive information that I don't want everyone to be able to view. Is there any way to secure this in a way that the Everyone user doesn't have Read/Add access and still have the process complete the Save to Repository step?