---
id: object/page/1214
type: object
title: Page 1214 "Data Exch Mapping Card"
summary: Page 1214 "Data Exch Mapping Card" in Base Application (System.IO). Present since at least BC23, still in BC30.
tier: official
language: en
tags:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/System/DataExchange/DataExchMappingCard.Page.al
    title: src/Layers/W1/BaseApp/System/DataExchange/DataExchMappingCard.Page.al (releases/29.x)
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    url: https://learn.microsoft.com/dynamics365/business-central/across-how-to-set-up-data-exchange-definitions
    title: Define how data is exchanged electronically
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    - https://learn.microsoft.com/dynamics365/business-central/across-how-to-set-up-data-exchange-definitions
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object_type: page
object_id: 1214
name: Data Exch Mapping Card
caption: Field Mapping
namespace: System.IO
app: Base Application
extends: null
first_version: "23"
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---

# Page 1214 "Data Exch Mapping Card"

> Page 1214 "Data Exch Mapping Card" in Base Application (System.IO). Present since at least BC23, still in BC30.

Base Application · System.IO · captioned "Field Mapping" · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/System/DataExchange/DataExchMappingCard.Page.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Caption | Field Mapping |
| SourceTable | Data Exch. Mapping |
| PageType | Document |

## Fields on this page

Layout controls in source order, grouped by the container they sit in. Shows: the table field a control is bound to (or its expression as written); ToolTip: the control's own, else the bound field's (marked).

| Group | Control | Shows | ToolTip |
|---|---|---|---|
| General | Table ID | [Table ID](../table/1224.md#fields) | Specifies the table that holds the fields to or from which data is exchanged according to the mapping. |
|  | Use as Intermediate Table | [Use as Intermediate Table](../table/1224.md#fields) | Specifies that the table that you select in the Table ID field is an intermediate table where the imported data is stored before it is mapped to the target table. |
|  | Name | [Name](../table/1224.md#fields) | Specifies the name of the data exchange mapping setup. |
|  | Key Index | [Key Index](../table/1224.md#fields) | Specifies the key index to sort the source records before exporting. |
|  | Key | [Key](../table/1224.md#fields) | Specifies the key to sort the source records before exporting. |
|  | Pre-Mapping Codeunit | [Pre-Mapping Codeunit](../table/1224.md#fields) | Specifies the codeunit that prepares the mapping between fields in Dynamics 365 and external data. |
|  | Mapping Codeunit | [Mapping Codeunit](../table/1224.md#fields) | Specifies the codeunit that is used to map the specified columns or XML data elements to fields in Microsoft Dynamics 365. |
|  | Post-Mapping Codeunit | [Post-Mapping Codeunit](../table/1224.md#fields) | Specifies the codeunit that completes the mapping between fields in Dynamics 365 and the external data file or service. |
|  | Data Exch. No. Field ID | [Data Exch. No. Field ID](../table/1224.md#fields) | Specifies the ID. This field is intended only for internal use. |
|  | Data Exch. Line Field ID | [Data Exch. Line Field ID](../table/1224.md#fields) | Specifies the ID. This field is intended only for internal use. |
| Content | Field Mapping | part [Page 1217 "Data Exch Field Mapping Part"](../page/1217.md) | — |
|  | Field Grouping | part [Page 1222 "Data Exch Field Grouping Part"](../page/1222.md) | — |
|  | Field Mapping | part [Page 1218 "Generic Data Exch Fld Mapping"](../page/1218.md) | — |

## Relations

- source table [Table 1224 "Data Exch. Mapping"](../table/1224.md)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: none

## Documented on Microsoft Learn

- [Define how data is exchanged electronically](https://learn.microsoft.com/dynamics365/business-central/across-how-to-set-up-data-exchange-definitions)

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "page", object_name: "Data Exch Mapping Card")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.