# Sandbox: canceling PENDING subscription schedules cancellation one day after future start

**URL:** <https://developer.squareup.com/forums/t/sandbox-canceling-pending-subscription-schedules-cancellation-one-day-after-future-start/28246>\
**Category:** Questions\
**Created:** [October 18, 2026, 4:07am UTC](https://developer.squareup.com/forums/t/sandbox-canceling-pending-subscription-schedules-cancellation-one-day-after-future-start/28246 "2026-10-18T04:07:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ESU](https://avatars.discourse-cdn.com/v4/letter/e/df705f/32.png) [@ESU](https://developer.squareup.com/forums/u/ESU)\
**Post date:** [October 18, 2026, 4:07am UTC](https://developer.squareup.com/forums/t/sandbox-canceling-pending-subscription-schedules-cancellation-one-day-after-future-start/28246/1 "2026-10-18T04:07:46Z")

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1. Subscription ID: `a45bdfae-a7eb-4941-ab24-82c784641689`
2. Timezone: `America/Chicago`
3. Future start: **November 18, 2026**
4. Cancellation requested: **October 17** , while `PENDING`
5. `CancelSubscription` returned cancellation date **November 19**
6. No invoices or `charged_through_date`

Will this subscription charge on November 18? What supported operation cancels it before its first charge, and could this relate to the sandbox date issue acknowledged in my linked thread [Sandbox subscription returns November 3 for requested November 2 start](https://developer.squareup.com/forums/t/sandbox-subscription-returns-november-3-for-requested-november-2-start/28078)) ?

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**Author:** ![ashley-square](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@ashley-square](https://developer.squareup.com/forums/u/ashley-square)\
**Post date:** [October 20, 2026, 6:16pm UTC](https://developer.squareup.com/forums/t/sandbox-canceling-pending-subscription-schedules-cancellation-one-day-after-future-start/28246/3 "2026-10-20T18:16:49Z")

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Unfortunately we do not have full sandbox support for subscriptions. Sandbox can be used to validate Subscriptions API request/response shapes and some subscription object behavior, but it does not reliably exercise the full end-to-end subscription lifecycle.

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<div class="post-metadata">

**Author:** ![ESU](https://avatars.discourse-cdn.com/v4/letter/e/df705f/32.png) [@ESU](https://developer.squareup.com/forums/u/ESU)\
**Post date:** [October 21, 2026, 7:28pm UTC](https://developer.squareup.com/forums/t/sandbox-canceling-pending-subscription-schedules-cancellation-one-day-after-future-start/28246/5 "2026-10-21T19:28:02Z")

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> [@ESU](#):
>
> 1. Subscription ID: `a45bdfae-a7eb-4941-ab24-82c784641689`
> 2. Timezone: `America/Chicago`
> 3. Future start: **November 18, 2026**
> 4. Cancellation requested: **October 17** , while `PENDING`
> 5. `CancelSubscription` returned cancellation date **November 19**
> 6. No invoices or `charged_through_date`
> 
> Will this subscription charge on November 18? What supported operation cancels it before its first charge, and could this relate to the sandbox date issue acknowledged in my linked thread [Sandbox subscription returns November 3 for requested November 2 start](https://developer.squareup.com/forums/t/sandbox-subscription-returns-november-3-for-requested-november-2-start/28078) ) ?

Thank you for clarifying the sandbox limitation. For production, what supported API operation cancels a future-dated PENDING subscription before its first invoice or charge? Does CancelSubscription guarantee this when called before start\_date? If sandbox cannot validate that behavior, what verification procedure does Square recommend before release?