On the top left corner, expand your current Business, and click your Business’ settings button.
Open the Business Settings.
Under Users, go to System users, then click Add.
Under System Username, type “Octolis Connector”. Under System User Role, select Employee. Click Create System User.
How to configure your System User?
Select your System user, then under Assigned assets, click Add Assets.
Under Select asset type, select Apps, then select your Octolis Connector app, then enable the Develop app partial access. Don’t click Save Changes just yet.
Under Select asset type, select Ad accounts, then select the ad accounts containing the Custom Audiences you want to send users to, then enable the Manage campaigns partial access, and click Save Changes.
You should now see your Business App and your Ad Accounts listed in the Assigned assets section of your System User.
Click Generate New Token, then select your Business App.
Make sure the ads_management permission is checked (if not, check it), then click Generate Token.
Copy and save the generated Access Token. You will need to provide it when you create a Facebook Ads connection in Octolis.