How do I upload a new logo for a partner?

You can create a theme for a partner and upload a new logo for that partner using the Appearance tool. Here are the steps:

1. Click on Navigator.
2. Under Configuration, select Sandboxes.
3. Enter the appropriate sandbox. Click on Appearance under Tools.
4. On the Themes page, you can create a theme for each partner and upload a new logo for that partner.

You can provide the partner with the URL that includes the theme name which will display the logo for that partner.