> ## Documentation Index
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# Canceling AutoBills on Billing Day

If you cancel an `AutoBill` object on the billing day, the Subscribe process that generates the related transactions begins immediately, and bills your customer. If you have set up cancellation and success notifications, your customer could also, for a short period of time, receive a cancellation notice followed by a success notification.

The `AutoBill.cancel()` call returns a success code of `200` when the call succeeds. Vindicia recommends that you also call `Transaction.fetchByAutoBill()` to check the transaction status.

**Parent topic:**[Canceling AutoBills](../topics/Canceling_AutoBills)


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