If you're offering recurring commission affiliate program for Wix, you can use OSI Affiliate Software via PayPal subscription.
Step 1. Add your referral program
To add your recurring affiliate program, go to "Referral Programs" and click "+Add".
Step 2. Add Initial Settings and then select Advanced Settings
Add your referral program name, description, program type and then click on "Show Advanced Settings".
Step 3. Set Recurring Program Options
To enable the recurring commission options select "yes" next to "Do you want to setup recurring commission" and then below you will set your commission amount and then select "PayPal" from the drop down options shown below and click continue.
Step 4. Set Recurring Program Options
At Next page check the option "Send Directly to My Store"
Step 5. Get code for your Paypal Subscription button
For the tracking to work correctly, you will need to get our code and add to your subscription button. To get the code, go to setup from your Admin control panel and click on the link says "Get Thank You Page Code".
Step 6. Select Paypal from the List of Shopping Carts
Once you select Paypal, you will need to copy the code shown in preparation to add to your subscription button code.
Step 7. Add code to your Paypal subscription button
Take the code you copied above in Step 6 and add it to your Paypal subscription button right before the closing form tag shown below.
Step 8. Add the modified PayPal subscription button code to your Wix site.
Login to your Wix site and click on Site Actions and then Edit Site.
Depending on your page theme/layout, select your Product Page where to add the subscription button code.
Click on Add then More and select HTML iframe and drag it to the product page.
Click on Edit Code and select Code under What do you want to add. Paste the modified code to the field and click on Update. Click on Publish once done.
Your Paypal subscription button integration is now complete. The system will now automatically add a recurring commission to an affiliate that refers someone that purchases through your Paypal subscription button as long as the subscription is active.