Creating a new request, reporter field won't allow me to add non-existing customers via shortcut URL

[katie_barry]

I've created a URL for my Sales team to submit New Orders Team.
<atlassian URL>/secure/CreateIssueDetails!init.jspa?pid=<ProjectId>&issuetype=<issueId>&requesttype=<requestId>

This works great as the request type is hidden from portal and my sales team get forced to enter the correct and required details when passing on an order.

Issue:

The reporter field in this method doesn't allow them to enter a non-existing customer email.

They CAN enter a non-existing customer in the reporter field when they use the create button which uses the create new issue screen, but this method tends towards random rushed tickets that are missing half the requirements and creates more work for my order team.

How can I get the URL version to allow the reporter to be a non-existing customer like the create issue screen? Why can they do it in one place, but can't in the other?

Troubleshooting:

I've changed permissions so Modify Reporter is Public, and Create Issue is public.
The Customer Access allows customers to create their own account.
Project access is set to any logged in user.
Changed Sales Team's role to include "Service Desk Team' - still won't work via URL.

[Brant Schroeder · Accepted solution]

@katie_barry welcome to the Atlassian community 

You will not be able to add customers via the url.  You will need to do it via portal or on issue create like you stated.

[Brant Schroeder]

@katie_barry Can you mark this as accepted to help others?