Invalid Web Request URL in A4J

[Derek Fields _RightStar_]

I am trying to make a REST call in an Automation to the Organizations API to retrieve information about a user.

My URL looks like this:

https://api.atlassian.com/admin/v2/orgs/<org_id>/directories/-/users?searchTerm=<email>

I have removed the org_id and email for obvious reasons

When I put this URL into Postman, it works as expected. When I put the URL into "Send Web Request" action in A4J, I get an "Invalid web request url" error.

Any ideas why it fails in A4J but works in Postman?