Partners can enter support contact details in the Business Central Administration Center

Enabled for Public preview General availability
Admins, makers, or analysts, automatically - This feature is released. Oct 1, 2019

Feature details

In the Business Central Administration Center, the reselling partner can choose an environment, and then specify their name, email address, and/or a website for support. This information is then presented to the customer in their Business Central tenant when they go to the Help & Support page. Customers now have a clear picture of how to get support from their reselling partner. Partners do have the option to update all tenants when entering their information to save them time from entering it on all environments.

See also

Configuring the support experience (docs)