> For the complete documentation index, see [llms.txt](https://docs.perkville.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.perkville.com/features/referrals/configuring-your-referral-program/referral-eligibility-explanation.md).

# Referral eligibility explanation

The **Referral eligibility explanation** field lets you add an optional customer-facing message that explains when a referral is eligible to earn a reward.

This message appears on the customer-facing referral page and should clearly explain any requirements the referred friend must meet for the referrer to qualify for a reward.

To update this field:

1. Go to **Settings**.
2. Under **Business**, select **Loyalty Program**.
3. Open the **Refer a Friend** section.
4. Find **Referral eligibility explanation (shown to customers)**.
5. Enter the message you want customers to see.
6. Click **Save**.

Use this field with the [**Referral reward eligibility window (days)**](/features/referrals/configuring-your-referral-program/referral-reward-eligibility-window.md) setting if you want to explain how long the referred friend has to complete the required action.

For example, if the eligibility window is set to 90 days, you could enter:

> Your referred friend must sign up for a qualifying membership within 90 days for your referral to qualify for a reward.

This helps customers understand the referral rules before they share their referral link.


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