You can sell a Prepaid Package type product to your customers after successfully creating itself or having one already. The selling process is simple, all you have to do is input the name of the customer who purchased the package and the item itself. Check out the explanation on this page for more detailed screenshots:
I. Input Customer and Package
Go to Sell then input customer name and package
II. How to Check Customer Package
Step 1. Go to the Contacts menu then select Customer
Step 2. Click the Package Tab
Here you will see all the package status that you have purchased
Purchasing a Treatment Package Tutorial Video
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After successfully selling the Prepaid Package product, the customer can immediately check in/use the Prepaid Package. You can check how to record customer check-in through this article: Using Prepaid Package.
If you apply a deposit system to customers, these types of products may be able to help your business: Redeem Point Type.