Microsoft GDK Store Association Account Privilege Requirements

Howdy all,

Using the GDK store association tool, I'm getting a 403 forbidden response when trying to link my config file with my MS Store game. Steps I've taken (The goal here is building to Microsoft Store):

• Created our app (Status is In the Microsoft Store)
• Can verify we have proper settings in the Xbox Settings tab in the partner center
• Created dev sandboxes
• Switched and verified sandbox exists with the GDK toolset
• Have attempted with Developer Mode toggled on/off.
• Have whitelisted recommended domains, and have the recommended ports forwarded from the gdk documentation.
• When trying to associate with either my partner login or my sandbox test account, I'm getting a rejection.

This feels like a privilege issue I need to kick up to the account owner, but unsure what setting needs to change. Dev context: Using Unity and the Microsoft GDK package. (I've used the 2207 github release, and the 1.0, and 1.1 official Unity released packages to make sure this isn't a one off.) Screenshot is what I'm returning.

TL-DR: What partner account privilege access is necessary to ensure the GDK association tool should work as intended?