It is explained in the main guide
AdButler Ads Zone URL to Discourse’s Site Settings
This plugin only support AdButler “Standard Zones”. Text and VAST are not supported.
If you browse to a zone in the AdButler admin, then you can find the Publisher ID (PPPPPP) and the Zone ID (ZZZZZZ) in the URL of your browser’s address bar:
https://admin.adbutler.com/?ID=PPPPPP&p=textadzone.view&zoneID=ZZZZZZ
Configure the ads in Admin > Settings > AdButler. Enter the publisher id in the “adbutler publisher id” setting, and enter the Zone IDs in the different zone id settings as desired.
By default, ads are assumed to be size 728 x 90, or 320 x 50 in mobile view. To use different size ads, customize using CSS in your site’s theme. Override the following CSS:
.adbutler-ad { width: 728px; height: 90px; } .adbutler-mobile-ad { width: 320px; height: 50px; }