invoice.created webhook and changing subscription quantities

[xylude xaalud]

I have a question regarding the invoice.created webhook. We want to change a customer's quantity based on usage of our tool - if we were to change it in response to the invoice.created webhook would that affect the invoice that is about to be charged to the customer, or would it only apply to the next invoices?

[Zach Wick]

Hi there,

I'm happy to answer your question and help you out.

I assume that when you write "change a customer's quantity" you mean update the `quantity` parameter on the `Subscription` object.

When you receive an `invoice.created` Event, if you update the `Subscription` object's `quantity`, that new value will not be reflected in the `Invoice` that was just created. Instead, this new `quantity` will be reflected in the `Invoice` that will be created for the next billing cycle.

The only way to modify the `Invoice` that was just created is to use `InvoiceItem` objects and ensuring that you pass in the `id` of the newly created `Invoice` as the `invoice` parameter as outlined in our docs [0].

I hope this clarifies the issue but please do not hesitate to get back to me if you need more details.

Good luck and happy hacking!

-zach

[0] https://stripe.com/docs/subscriptions/invoices#adding-invoice-items

On Mon, Jul 3, 2017 at 8:26 AM, xylude xaalud <xyl...@gmail.com> wrote:

I have a question regarding the invoice.created webhook. We want to change a customer's quantity based on usage of our tool - if we were to change it in response to the invoice.created webhook would that affect the invoice that is about to be charged to the customer, or would it only apply to the next invoices?

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