You can only compete with another users on content that you have in common.
A content in common is a content that has been broadcasted in an finished campaign.
In short I can compete with a user if:
- There at least one campaign that target both of us
- The campaign are finished (meaning they are active and the end date is in the past)
If you want your users to battle right away. You can trick the system by duplicating the current campaign, set the end date in the past and activate it.
( /!\Change only the start date, the end date will follow /!\),