> For the complete documentation index, see [llms.txt](https://docs.calypso.money/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.calypso.money/get-started-with-calypso-api/webhook-subscriptions/delivery-order.md).

# Delivery order

### Webhook Delivery Order

Our service **does not guarantee strict order of webhook delivery**.\
This means that:

* Webhooks may arrive in a different sequence than the order in which events occurred;
* Build your integration around terminal (final) process statuses, not intermediate states;
* Implement idempotency mechanisms for handling duplicate webhooks;
* Use unique event identifiers to prevent duplicate operations;
* Implement API calls to check current status when uncertain;
* Use regular status polling for critical operations.


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