You must configure the upload plugin to use your upload authorization 'secret' credential before templates may be uploaded to the HotDocs Hub. The same secret is used by all users in your organization able to upload templates from HotDocs Developer to the Hub.
The authorization secret required by the Upload Plugin is set by the HotDocs Hub installer.is sent to the Tenancy Administrator when the HotDocs Hub account is first provisioned. If you do not have authorization credentials, please contact your HotDocs sales representative.
If you are uploading a template to a new installation of Hub, you should first change the client secret for Hub.
See Uploading a Template from HotDocs Developer for information about using and configuring the plugin.