Make amends to a subscription configuration, products and phases
update subscription
in the subscription action dropdown. This will re-open a form where every setting of the subscription will be editable, allowing complete customisation of every setting at once.
...
then update price
. Their price will be updated immediately, with an impact on the next invoice.
...
then update quantity
. The update can be scheduled immediately or on the next invoice, and charged/refunded at a pro-rata, for full price or with no charge/refund.
add product
. Product will be able to be added with an existing price configuration or manually configured. They will be added immediately to the subscription, and can be charged full price, pro-rata or not charged, immediately or on the next invoice.
...
then remove product
. Depending on the product balance, they can be charged or refunded, at a pro-rata or full price or without payment, immediately or with the next invoice.
add coupon
. You will then be able to configure the coupon name, application, discount type and products to which it is applied.
...
then remove coupon
.