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b) Click on the Tracking Links tab at the top. Select you affiliate and your URL.
Select your Copy the unique link at the bottom.
Affiliates will probably ask you which parameters they can use in the link. You can add the parameter ?sub1= up to 5
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Note: If you do not see your affiliate in the list, this one will need to be approved. Refer to the documentation "How to Approve an Affiliate to Run an Offer"
Affiliates - Approve an affiliate to Run an offerOffer