> ## Documentation Index
> Fetch the complete documentation index at: https://paxos-0ac97319-jg-test-1.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

> Get answers to common questions about the Settlements API.

<AccordionGroup>
  <Accordion title="Do I need to have the right amount of assets before creating the transaction?" id="assets">
    No.
    You can create and approve the transaction first and then deposit [assets](/guides/developer/blockchains) when ready.
    Settlement only takes place when the transaction is [affirmed](/guides/settlements/status) and all the required assets have been deposited.
  </Accordion>

  <Accordion title="Why am I not receiving email notifications when testing in Sandbox?" id="notifications">
    Notifications are off by default in Sandbox. Contact [Support](https://support.paxos.com) to turn them on.
  </Accordion>

  <Accordion title="Which assets are supported for Sandbox testing?" id="testing">
    You can fund your Sandbox Account with the supported [assets](/guides/developer/blockchains) or those listed in [Create Sandbox Deposit](/api-reference/endpoints/sandbox-deposits/create-sandbox-deposit).
    For most setups, use the assets you can trade, transfer or withdraw for testing.
  </Accordion>
</AccordionGroup>