SharePoint Online: Reapply permissions for the ListAggregator app
To reapply permissions for the ListAggregator app please complete the following steps:
- In the left vertical navigation of you sitecollection click on Site contents.
- Locate List Aggregator on the Site contents page.
- Hover over the List Aggregator-tile and click on the ellipsis (…) to open the context menu.
- In the context menu click on PERMISSIONS.
- In the permissions dialog click on here to reapply the necessary permissions to the List Aggregator add-in.