When you are running a facebook ad , if you are getting 0 impressions then that means your audience size is too low
1. If you are doing pixel based retargeting (sending traffic to CAM using organic methods or sending traffic via pixaly links)
You need to increase that traffic.
To achieve that, you can do the following methods:
- Paid FB
- Google display (as discussed in the bonus module)
2. If you are doing cold audience targeting
You need to increase audience size