Clients can add multiple items that each offer different payment plans. Payment due at checkout (for each item) depends on which installment option was selected when adding it to the cart.

To remove a required add-on from the cart, you must first remove the primary activity it's linked to. When you do, the required add-on is automatically removed from the cart. However, you can remove suggested add-ons at any time.

If an activity add-on has its own required and/or suggested activities, they won't be prompted when the main activity is added to the cart. Only the add-ons linked to the main activity are required or suggested.

When you link required merchandise to an activity, it's listed at the bottom of 'Required items for this activity' or items 'Frequently bought together'.

Unlike activity add-ons, linked merchandise pops up each time a client buys the item, regardless of whether the merchandise had been purchased in the past. Careful - linked merchandise is a bit different from service add-ons, which are merch that can only be purchased if a client registers for the main activity.

Required or suggested activities on drop-ins are not supported, meaning if you link activity add-ons to a drop-in, they won't be prompted in the store after the client adds the main activity to their cart.

No, you can't suggest or require someone to purchase a drop-in activity. Drop-ins are ineligible for this feature.

You can link a session activity with drop-in spots to a main activity. However, only the session spots are considered if the activity is required or suggested. Drop-in spots won't be considered. Once all session spots are filled, the activity add-on is considered full.

To see which activities have an activity add-on, you can download the 'Information on the activities of this program' report (in the Reports tab). A column in the report shows if an activity add-on is linked or not. It doesn't provide the name of the add-on(s).

You can get a list of registered participants by pulling the Registration information report for the activity in question.

You can also generate an Activity/participant list by going to Activities > Registration, selecting the activity and choosing Activity/participant list from the Operations menu. You can customize the columns you want to see in the report before you generate it.

Admins can bypass activity add-ons.

Below, an activity with two required activities is added to the cart. If neither activity add-on was ever purchased nor is in the cart, a pop-up invites clients to add them to the cart so they may continue.

No alert is made to clients nor to admins if the schedule for an activity add-on is in conflict with the main activity's schedule.

If spots are full for a session add-on, clients won't be able to add the full activity to the cart. Only admins may bypass this restriction.

If a client cancels a required activity, it's up to the administrator to follow up in Client billing. When a required activity is cancelled, it doesn't cancel the main activity.

Link merchandise to your activities when you want to sell 'stuff' when someone buys an activity.

Link activity add-ons for anything that may require a childcare tax receipt, that needs a form, attendance, participant lists, schedule holders, etc.,

You can link suggested or required merchandise to activity add-ons. You may even pay for suggested or required merchandise in installments (if configured).