> For the complete documentation index, see [llms.txt](https://docs.afflr.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.afflr.io/frequently-asked-questions/15.-how-to-limit-one-customers-use-of-a-referral-code.md).
# 15. How to limit one customer's use of a referral code?
Afflr provides provisions to limit the repeated use of one referral link or code by a customer. This will prevent the exploitation of the affiliate program by a single customer.
To enable this in Afflr,
1. Go to Afflr dashboard -> Programs
2. Click create a program or Edit an existing program
3. Scroll down and tick the check box that reds 'Limit to one use per customer'
4. Save the program
Limit to one use per customer
Once this option is enabled, one customer can use an affiliate link or code only one time.
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