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

# Data types for a single-document processing case

> Reference for the Line Item data type fields and IDs used in a single-document Pega processing case for the ABBYY FlexiCapture connector.

A single-document processing case needs one custom data type, `Line Item`, which holds the line items of the invoice.

For the general procedure, see [Create a custom data type](/flexi-capture/connectors/pega/pega-add-data-type).

## Line Item

| Name              | ID                | Type |
| ----------------- | ----------------- | ---- |
| Article Number    | `ArticleNumber`   | Text |
| Currency          | `Currency`        | Text |
| Description       | `Description`     | Text |
| Order Number      | `OrderNumber`     | Text |
| Quantity          | `Quantity`        | Text |
| Total Price Netto | `TotalPriceNetto` | Text |
| Unit Price        | `UnitPrice`       | Text |

<Frame>
  <img src="https://mintcdn.com/abbyy/Xgx3EG8BZs5YQjIJ/images/flexi-capture/connectors/Pega195.png?fit=max&auto=format&n=Xgx3EG8BZs5YQjIJ&q=85&s=0990ddce3f6531f9583c9ef550bdba05" alt="Screenshot of the Data model tab in Pega Dev Studio showing the Line Item data type fields Article Number, Currency, Description, Order Number, Quantity, Total Price Netto, and Unit Price, each scoped to Line Item." width="825" height="348" data-path="images/flexi-capture/connectors/Pega195.png" />
</Frame>