I am able to authenticate with the API servers using my customer key and secret but all API calls afterward get an "Access denied" response.
Here is an example of a response when trying to create a test backlog order:
<HTML><HEAD>
<TITLE>Access Denied</TITLE>
</HEAD><BODY>
<H1>Access Denied</H1>
You don't have permission to access "http://transact-pre.ti.com/v2/backlog/orders" on this server.<P>
Reference #18.e4272417.1689206875.5c1b5ac
</BODY>
</HTML>
I am using the key/secret specifically for the backlog API sandbox. I have a separate key and secret for the Orders API and can successfully create orders. Why are the servers responding with "Access Denied" and what do I need to do to get access?