This article describes how to install Vitextra product to SharePoint Online environment.
Vitextra SPFx-based products may be installed only on Office 365 (SharePoint Online, Microsoft Teams).
Vitextra SPFx products can not be installed on SharePoint on-premise 2016/2019.
To perform the installation procedure, you must have the Tenant Admin role assigned to you.
Download the zip file (*.zip) of the product from the downloads page and unpack it to somewhere on your computer.
From Microsoft 365 admin center} go to SharePoint Admin Center. Go to More Features and click Open button under Apps heading:
Go to App Catalog
Open Apps for SharePoint and upload the extracted .sppkg file.
After uploading the package, SharePoint Online will show you the dialog and ask you to trust the solution.
Once the package is deployed you'll see it in the list of installed client-side packages.
Go to API Access section in SharePoint Admin Center to make sure the installed application has the necessary permission to the API. Expand Pending Request heading and approve API access requests.