Why do I not have permissions to access EasyRoutes?
When you or one of your Shopify Staff accounts see the following error message:
It indicates that the particular Staff member does not have the necessary permissions.
To fix, visit your visit the staff member's permissions:
Shopify Settings > Users and permissions > (click on staff member)
... and verify either Manage and install apps and channels (for all apps) or at least EasyRoutes Local Delivery is checked.