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

# CustomerOpenItem

> An invoice of a customer that is not fully paid. The invoice itself belongs to the sales invoices.



**Kind**: `object`

## Fields

**`invoiceId`**: `ID!`

The invoice.

---

**`invoiceNumber`**: `String!`

The invoice number.

---

**`invoiceDate`**: `DateTime!`

The invoice date.

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**`dueDate`**: `DateTime`

When payment is due.

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**`currencyCode`**: `String!`

The currency of the invoice as ISO 4217 code.

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**`grossAmount`**: `Decimal!`

The gross amount of the invoice.

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**`paidAmount`**: `Decimal!`

What is paid.

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**`openAmount`**: `Decimal!`

What is still open.

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**`dunningLevel`**: `Int!`

The dunning level reached; 0 means not dunned.