Validate your registration email address
Before you will be able to start using your Captisium Universal File Handler, you will need to confirm the email address that you provided during the registration process.
To resend the validation email, provide the SharePoint URL of your SharePoint Online site. If the Email Address is already validated, a validation email will not be sent.
If you don't receive the validation email, you will need to complete the consent process for Modern Sites, to confirm that you are an administrator of the SharePoint URL that was registered. When you do that, a validation email will be sent to both the registered email address and the administrator's email address. This will allow you to see the email address that was used and then validate accordingly.