Start by creating a new Glide app or opening one you already have. Make sure user authentication is turned on because the referral program needs to track user-specific actions.

Create a new tab or screen where users can refer friends. Add a form for users to input the email addresses or contact info of the people they want to refer. The form should have fields for:

1. Referrer's User ID or Email
2. Referral's Email

In Glide's connected Google Sheet or Airtable, make a new sheet called "Referrals". Add columns for:

1. Referrer's User ID
2. Referral's Email
3. Referral Status (e.g., Pending, Completed)
4. Reward Status (e.g., Not Earned, Earned)

Use Glide's Actions and Zapier for automation. Set up actions on the referral form submission to:

1. Add a new row in the "Referrals" sheet with the referrer’s User ID and the referral’s email, setting the Referral Status to "Pending".
2. Use Zapier to detect new entries in the "Referrals" sheet and send invitation emails to the referred individuals.

Set up automated logic to verify when a referral is successful. This can be done by checking if the referred user signs up and completes the necessary action (e.g., registration, first purchase):

1. Add a new column in your users' sheet named "Referred By".
2. Use a lookup or filter to match new signups against the "Referrals" sheet.
3. Mark the Referral Status as "Completed" when a match is identified.

Once a referral is verified as successful, update the "Referrals" sheet to mark the Reward Status as "Earned." Depending on the incentive, update the referrer's user record with the corresponding reward (e.g., points, discounts).

1. Create a column in the user sheet for tracking rewards or points.
2. Automate the process using Glide’s computed columns to sum up the total rewards or set specific reward values.

To keep users engaged, create a dashboard or profile tab where they can:

1. View the status of their referrals (Pending, Completed).
2. See their accumulated rewards or points.
3. Access their unique referral code or link for sharing.

Set up notifications to inform users when:

1. A referral has been sent.
2. A referred user has signed up or completed the required action.
3. Rewards have been credited.

Utilize automated emails via Zapier or push notifications within Glide.

Before going live, thoroughly test the referral process to ensure that:

1. Form submissions are correctly logging in the "Referrals" sheet.
2. Referral verification logic is accurate.
3. Rewards are correctly calculated and credited.
4. Notifications are sent at the right triggers.

Adjust any configurations or fix issues as necessary.

Upon successful testing, make the referral program accessible to your users. Promote it via:

1. In-app announcements.
2. Emails to your user base.
3. Social media and other marketing channels.