Zipper Help Center

How to Limit Products to Single Purchase

Learn how to configure products so customers can only purchase them once. This is useful for introductory offers, one-time onboarding packages, or any product that shouldn't be repurchased.

Before You Begin

  • You must be logged in to your account at https://app.joinzipper.com
  • You need permission to manage products (typically organization owners and admins have this permission)
  • The product must already exist or you're creating a new one

Steps

Step 1: Navigate to Product Settings

  1. Log in to your account at https://app.joinzipper.com/auth/login
  2. Click Packages in the left sidebar
  3. Find the product you want to configure
  4. Click on the product to open its settings

What happens next: You'll see the product configuration page.

Step 2: Enable Single Purchase Only

  1. In the product settings, find Purchase Settings or Availability
  2. Look for the Single purchase only option
  3. Enable/toggle Single purchase only
  4. Click Save

What happens next: The product is now limited to one purchase per customer.

Step 3: Verify the Setting

To test that the setting works:

  1. Find a test customer who has not purchased the product
  2. Process a purchase of the product for them
  3. Attempt to purchase the same product again for the same customer
  4. You should see a message that the customer already owns this product

How Single Purchase Works

For new customers:

  • Product is available for purchase
  • Checkout proceeds normally
  • Purchase is completed successfully

For customers who already own the product:

  • Product shows as "Already Purchased" or similar
  • Cannot add to cart or proceed to checkout
  • Customer can view their existing purchase
  • Staff see a notification that purchase is blocked

In the customer's product list:

  • Owned products are marked appropriately
  • "Already Purchased" label displayed
  • Link to view existing purchase/subscription

Use Cases for Single Purchase Products

Introductory Offers:

  • First-month discounts
  • Trial periods
  • New customer specials

Onboarding Packages:

  • Starter kits
  • New member packages
  • Registration fees

One-Time Products:

  • Registration or enrollment fees
  • Assessment packages
  • Orientation sessions

Membership Components:

  • Initial setup fees
  • Joining fees
  • One-time equipment purchases

Tips

  • Clearly name products to indicate they're one-time offers
  • Consider what happens after the product expires (for subscriptions)
  • Use this for introductory offers to prevent abuse
  • Combine with invitation-only to control who can purchase
  • Test the setting with a staff or test account before going live

Troubleshooting

Problem: Customer was able to purchase the product twice Solution: Check that:

  • "Single purchase only" is enabled on the product
  • The purchases were for the same customer account
  • The setting was saved correctly

Solution: Go to the product settings and verify the single purchase option is enabled and saved.

Problem: Customer can't purchase and they've never bought it Solution: Check that:

  • Customer doesn't have a previous purchase (check history)
  • There isn't a duplicate customer account with the purchase
  • The product isn't also restricted by other settings

Solution: Review the customer's purchase history for duplicates or merged accounts.

Problem: I need to let a customer re-purchase a single-purchase product Solution: Options include:

  • Disable "single purchase only" temporarily, complete the purchase, then re-enable
  • Create a duplicate product without the single-purchase restriction
  • Cancel/refund their original purchase if applicable

Note: Be careful not to create loopholes in your business rules.

Problem: Single purchase setting isn't available Solution: Check that:

  • You're editing the right product type
  • You have permission to modify product settings
  • The feature is available for your plan

Solution: Contact support if you don't see the option but expect to have access.