⚠️This article only applies to the legacy site app.miniextensions.com
There are a few reasons why you may not be able to install the Sync App.
1. Editor Permission
You only have "editor" permission" to the base. You need creator/owner permission.
2. Third-party Apps Restriction
If you are a part of a restricted Airtable enterprise account, you may not be able to install the Sync App. The app can't be listed on the Airtable marketplace because it only has one limited function: to sync Airtable with miniExtensions.
The Workaround
We do provide another way to sync your base. When you try to add a new base, click on "Can't install the Sync App".

This will allow you to sync your base using the Scripting app, which is available for free in the Airtable marketplace.