> ## Documentation Index
> Fetch the complete documentation index at: https://docs.slm.m1amdocs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Canceling AutoBills with unknown start date

AutoBills created with an `unknownStart` date can remain in the `Pending Activation` state for up to two years. Use the `AutoBill.cancel()` call to cancel the `AutoBill` and be sure to set the flags `disentitle` and `settle` to `True`. If these flags are not set the `AutoBill` will move to status `Pending Cancel` and the `Transaction` will persist with status `New`. (See [Creating AutoBills with deferred start](Creating_AutoBills_with_).)

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


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.