Clicking the  Config menu (shown below) then choosing  Setup Sage Paperless will bring up the Config Sage Paperless window.

In this window, you will provide the DBID, which is used to find the appropriate AP invoices coming from your ERP to match to the invoice images extracted from Sage Paperless. Once you enter your Sage Paperless SQL server information you would click the Login & Validate Button. This will unlock the Database dropdown on the bottom allowing you to select your server for Paperless. Once selected you will click AP or AR or both if you have AR setup to the spec required above. Once you click the check box for AP you can click the Add Sage paperless Button. If Adding both AP and AR you will have to select the AR document Type and the AR invoice number field to we can get the appropriate info to sync AR invoices. Once Document type and INF fields are selected click the Add Sage Paperless button at the bottom.