From Customer365 for SageCRM

Logo for portal appears on top LHS of page

The default location is "Images/logo_new.png".

This can be changed via the settings or a new image with the same name can be uploaded.

Images should not be larger than the default image. Larger images may affect the site layout.

   <add key="LogoUrl" value="images/logo_new.png"/>

It is also possible to make the image clickable and redirect to a URL:

   <add key="LogoHyperLink" value="https://crmtogether.com"/>