You can personalize a link for each recipient by specifying their individual contact ID or a personal coupon code, for example. To have all the link clicks show up in the statistics as one link only, specify a unique tracking title for the generated links:
<a href="{{"http://www.example.org/?coupon_code=" | append: contact.custom_coupon_code |
tracked_link: "Coupon Link"}}">Redeem Your Coupon Code</a>
The resulting entry in the mailing statistics would look like this:
Coupon Link: 34127 clicks
Without a title, the clicks would be listed individually in the mailing statistics. So,
<a href="{{"http://www.example.org/?coupon_code=" | append: contact.custom_coupon_code |
tracked_link}}">Redeem Your Coupon Code</a>
results in individual entries in the mailing statistics for each tracked link:
http://www.example.org/?coupon_code=abc17: 1 click
http://www.example.org/?coupon_code=def18: 1 click
http://www.example.org/?coupon_code=hij19: 1 click
…