This type of product works with units from which the system deducts after a session. You can define the units, price and expiry. An example is a "Pack of 10" that a client buys and when they attend a session, the pass is reduced with 1 unit. The app keeps track of remaining units and a red icon will show next to the client's name when they are up for renewal.
Once you defined your products, you can sell them to your clients. You simply select a client profile and pick the product that you want to sell. Payment can be registered immediately but you can also leave that open for later. In that case a "Remind" link will be visible next to the sale and of course the payment registation against it.
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