Update invoice schedules by adding subscription charges

Before an invoice schedule created on an order is processed, you add some rate plan charges to the subscriptions in the order, and then update the invoice schedule to align with the subscription change.

This use case is based on the precondition documented in Create single-year invoice schedules on new subscriptions with the same term: 

• An order with four subscriptions is created, with the same charge start date and end date ranging from 1 January 2023 to 31 December 2023.
• An invoice schedule with three schedule items is created on the order with the total amount of $70,200.00.
• No invoice is generated yet.

The following table lists the detailed information of the invoice schedule in Pending status.

Before any invoice is automatically generated and posted, your customer signs another agreement to subscribe to another product rate plan charge C5 with the amount of $500.00, and wants to bill the new subscription in the third invoice on 16 September 2023. Therefore, you create another order to add the product rate plan charge C5 to an existing subscription, and update the existing invoice schedule with the amount change. 

To add a product to a subscription in the existing order and update the corresponding invoice schedule, perform the following steps:

1. Create an order to add a product to subscriptions S4 for another year from 1 January 2024 to 31 December 2024, and then activate the order.
   Order O-0002 is created and activated.
2. On the order details page of order O-0001, click the number of the invoice schedule associated with the order.
3. On the invoice schedule details page, click Edit in the upper right.
   The Edit Invoice Schedule page is displayed.
4. In the basic information section of the Edit Invoice Schedule page, associate order O-0002 with the invoice schedule.
   • Click the “Edit” action link next to the order number displayed in the Order Number field.
   • In the Change Orders popup window, enter O-0001, O-0002 in the Order Numbers (separated with comma) text box.
   • Click Done to save the order number changes.
     The value of the Total Amount field is refreshed to the total amount of orders O-0001 and O-0002.
5. In the Schedule Items section, enter 6,700 as the new billing amount in the Bill field in the corresponding row of invoice schedule item 3.
6. Click Save Updates to save the changes.

The following table lists the detailed information of the updated invoice schedule.

After the invoice schedule update is complete, three invoices are automatically generated with the corresponding amount on the scheduled dates.