> For the complete documentation index, see [llms.txt](https://docs.akinon.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.akinon.com/technical-guides/oms/fulfillment/invoice-integration.md).

# Invoice Integration

Invoices play a crucial role in order processing. In this tutorial, the process of providing invoice information to the OMS, which involves generating invoices after a packaging order, transferring them to the ERP system, and having the OMS copy the invoice will be explained.

## <mark style="color:red;">Invoice Generation​</mark> <a href="#invoice-generation" id="invoice-generation"></a>

It's important to note that the OMS does not create invoices but instead sends a request for invoice generation.

Invoices are among the main items of an order. In general terms, the flow of providing invoice information to the OMS can be explained as invoicing after a packaging order, transferring the invoice to the ERP system, and the OMS copying the invoice.

<figure><img src="/files/cuTM8Cs9Kac9nkXzR9af" alt=""><figcaption></figcaption></figure>

The OMS does not create the invoice, but solely sends a request for the invoice to be generated.

The key concept here is invoice integration, which refers to the OMS's ability to initiate an invoice generation process. This process can be synchronous, running on integrated supplier ERP software, or it can be handled by separate third-party software.

### <mark style="color:red;">Running the "Packed" Command​</mark> <a href="#running-the-packed-command" id="running-the-packed-command"></a>

When the **Packed** command is executed for Packaging Orders within the OMS, signifying the completion of the packaging process, the OMS sends a request to the invoice services. This request ensures that the invoice information is processed and associated with the relevant package. Additionally, the OMS allows for the printing of this invoice document.

By integrating invoice generation into the OMS, users can update their order processing and ensure accurate and efficient invoicing.


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