The SigningHub for SharePoint add-in installation that is done on a Microsoft Office 365 account, is called an Office 365 installation. This installation type is available on both the trial and paid accounts of Office 365. Before you proceed to the installation, make sure that you have got the required SharePoint permissionsto enjoy the seamless experience of SigningHub.
Installation prerequisites
There are two prerequisites of Microsoft Office 365 installation, i.e.:
Microsoft Office 365 account should be created, and SharePoint should be configured in it.
The operator installing the SigningHubadd-in should have the SharePoint Admin rights (i.e. Tenant Administrator) on the site collection where the add-in is required to install.
Microsoft Office 365 Installation
You can install the SigningHub for SharePointadd-in on any site collection or team site of your Office 365 account, from the SharePoint Store. However to prevent your end users from accessing the SharePoint store, you can create a catalog site to make the SigningHubadd-inavailable to your organisation. This is useful when direct access to the SharePoint Store is disabled for your end users.
If there is no restriction for your end users to access the SharePoint Store or the catalog site is already created, skip the first two steps and move to the step 3, i.e. Create a site collection or a team site.