Pick the problem you are seeing, then work through the checks in order. Each one links to the full answer.
Your own analytics show visitors, but the affiliate dashboard shows no clicks. Check in this order.
All answers →How to check
Copy the link again from your dashboard and compare it with the one on your page, character by character.
If this is the problem
Replace the link everywhere it appears with the fresh copy.
How to check
Open the link in a private window with no shortener, plugin or redirect in front of it, then look for the click in your reports.
If this is the problem
If the raw link works, a redirect or plugin is removing parameters. Remove it or switch to one that keeps them.
How to check
Look at the label after your link. Spaces and symbols can break it.
If this is the problem
Use only letters, numbers and dashes.
How to check
Click it on a phone and on a desktop and watch where you end up.
If this is the problem
If the destination is wrong, the link or its redirect is misconfigured.