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

# AddVirtualCardAddressInput

> Input type for saving a billing address before issuing virtual cards.

**Input object**

Input type for saving a billing address before issuing virtual cards.

## Input fields

<ParamField name="billingAddress" type="VirtualCardBillingAddressInput!" required>
  Billing address to save on the target account for the caller or authorized cardholder.
</ParamField>

<ParamField name="authUserId" type="UUID">
  Optional authorized user ID (UAC role assignment ID). When provided, the address is
  saved for that user's underlying user\_id while remaining attached to the caller's account.
</ParamField>