You must either by a Superadmin or have both “Accounting” and “Sales” access to authenticate this source.The access rights can be changed by navigating to “All settings” -> “Subscription status”.
The e-conomic source is authenticated with OAuth 2.0. All you have to do is check whether you have the Dimensions (departments) add-on and then click “Authenticate with e-conomic”.
The Dimensions (departments) is incluedd in the “Advanced” tier and otherwise it is an add-on.
Once you have authenticated, you can click “Next” and select the tables you want to extract.