Referral rate hierarchy

The below article outlines the hierarchy of referral rates, in order, with 1 being the lowest and 5 being the highest, depending on your configuration of AffiliateWP's core features and add-ons.

1. Global referral rate

When a referral rate is defined in Affiliates → Settings → General, this is known as the global referral rate. This is the base referral rate and will apply to all referrals, unless the below settings/add-ons are active and have been configured.

2. Per-product referral rates

When a per-product referral rate has been defined (by editing the product), this referral rate will override only the global referral rate. Setting a per-product referral rate is only possible with full integrations that support per-product referral rates.

3. Tiered Affiliate Rates

When Tiered Affiliate Rates is installed and tiered rates have been defined, and an affiliate reaches the referrals or earnings threshold, all future referrals will be recorded at the next tiered rate (and so on, depending on the number of tiers defined). Tiered referral rates will override the other referral rates mentioned above, for all future referrals — this includes the global referral rate, and per-product referral rates.

4. Recurring Referrals

When Recurring Referrals is installed, the first referral is generated by the AffiliateWP core plugin. All subsequent referrals for a subscription are generated by the Recurring Referrals add-on. The first referral will be calculated based on either the global referral rate, or a per-product referral rate, if one has been defined (or, on the per-affiliate rate as per the "Per-affiliate referral rate" paragraph below). 
If a recurring rate is defined in Affiliates → Settings → Recurring Referrals, this rate will apply to all subsequent referrals (after the initial referral). This referral rate will continue to override all previous referral rates mentioned above for all future referrals — this includes the global referral rate, per-product referral rates and tiered rates. If an affiliate has a per-affiliate referral rate, the first referral and all future recurring referrals will be calculated at that affiliate's specific referral rate;  not at the defined recurring rate.

5. Per-affiliate referral rate

When a per-affiliate rate is set in the Edit Affiliate screen, this rate will override all other referral rates for that specific affiliate — this includes the global referral rate, per-product referral rates, tiered rates, and recurring rates. If an affiliate has a per-affiliate referral rate, all referrals (including recurring) will be recorded at that affiliate's specific referral rate.