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

# Create Invoice

> Creates an invoice charged to your reseller balance and delivered from stock. Serial and dynamic deliverables are returned synchronously; check pending items via Get Invoice. Every item in one invoice must share the same currency, so products priced in different currencies have to be ordered as separate invoices. Optionally send an <code>Idempotency-Key</code> header (unique per invoice, reused on retries): if a request times out, retrying with the same key returns the original invoice instead of charging you twice.



## API Specification

The full API specification for this endpoint is available in the [documentation index](https://docs.sellauth.com/llms.txt).


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