Step 2 - Enter Api Credentials
1. In your Magento admin head to System > Configuration > Fooman > Api Credentials
2. Copy and Paste both the Api Key and Api Secret, then hit Save Configuration.
3. You should now see a successful connection Test
Optionally you can connect more Xero organisations if provided by your plan by repeating the API Key and Api Secret generation process and applying these settings per store view scope.