The SharePoint Store is a cloud-based service where you can obtain free and paid apps for SharePoint. You must have an App Catalog configured in order for users to be able to install apps. Through the SharePoint Store settings, you can configure whether users are allowed to obtain apps directly or if they have to go through a request process.
To configure the store settings, follow these steps:
- Navigate to the SharePoint Admin Center (https://tenant-admin.sharepoint.com).
- Select Classic features. Then, under Apps, click Open:
- Select Configure Store Settings:
- Select the appropriate radio buttons to configure the settings and click OK:
You can also click the Click here to view app requests link to be taken to the App Catalog's App Requests page.