This could be due to any of the following:
- Integration not set up correctly.
- A redirect happening at a point (following an affiliate link) that breaks the tracking - in which case, the redirect tracking method can be used, or you can modify your 'Default landing page'.
- You might be expecting to see clicks right away, while they will actually take about 10 minutes to show up.
If none of the above apply, get in touch so we can help out!