---
title: "Table 1225 Data Exch. Field Mapping"
author: "Jonas Paprotka"
url: https://jonas-paprotka.de/ref/table/1225-data-exch-field-mapping/
type: table
id: 1225
name: "Data Exch. Field Mapping"
app: "Base Application"
namespace: System.IO
versions: "17-28"
build: 28.5.54151.54365
source: "https://jonas-paprotka.de/ref/table/1225-data-exch-field-mapping/source/29/"
checked: 2026-09-20
subject: "Microsoft Dynamics 365 Business Central"
license: "Content © 2026 Jonas Paprotka. Quote freely with attribution and a link."
---

# Table 1225 Data Exch. Field Mapping

Jonas Paprotka, https://jonas-paprotka.de/ref/table/1225-data-exch-field-mapping/

| | |
| --- | --- |
| App | Base Application |
| Namespace | System.IO |
| Versions | 17-28 |
| Source file | System/DataExchange/DataExchFieldMapping.Table.al |

## Fields

| Id | Name | Type | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- |
| 1 | Data Exch. Def Code | Code[20] | 17-28 | - | - |
| 2 | Table ID | Integer | 17-28 | - | - |
| 3 | Column No. | Integer | 17-28 | - | - |
| 4 | Field ID | Integer | 17-28 | - | - |
| 5 | Optional | Boolean | 17-28 | - | - |
| 6 | Use Default Value | Boolean | 17-28 | - | - |
| 7 | Default Value | Text[250] | 17-28 | - | - |
| 8 | Data Exch. Line Def Code | Code[20] | 17-28 | - | - |
| 9 | Multiplier | Decimal | 17-28 | - | - |
| 10 | Target Table ID | Integer | 17-28 | - | - |
| 11 | Target Field ID | Integer | 17-28 | - | - |
| 12 | Target Table Caption | Text[250] | 17-28 | - | - |
| 13 | Target Field Caption | Text[80] | 17-25 | Removed 23.0 | Redesigned to a new field "Target Table Field Calcucation" |
| 14 | Target Table Field Caption | Text[80] | 19-28 | - | - |
| 20 | Transformation Rule | Code[20] | 17-28 | - | - |
| 21 | Overwrite Value | Boolean | 17-28 | - | - |
| 30 | Priority | Integer | 17-28 | - | - |

## Keys

| Name | Fields | Versions |
| --- | --- | --- |
| Key1, clustered | Data Exch. Def Code, Data Exch. Line Def Code, Table ID, Column No., Field ID | 17-28 |
| Key2 | Data Exch. Def Code, Data Exch. Line Def Code, Table ID, Priority | 17-28 |

## Procedures

| Name | Parameters | Returns | Access | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- | --- |
| InsertRec | (Code[20], Code[20], Integer, Integer, Integer, Boolean, Decimal) | - | public | 17-28 | - | - |
| FillSourceRecord | (Record Field) | - | public | 17-28 | - | - |
| GetColumnCaption | () | Text | public | 17-28 | - | - |
| GetFieldCaption | () | Text | public | 17-28 | - | - |
| GetPath | () | Text | public | 17-28 | - | - |

## Events

| Kind | Name | Parameters | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- |
| Integration event | OnBeforeInsert | (var Record Data Exch. Field Mapping, var Boolean) | 23-28 | - | - |

## Source

Symbols: Microsoft.BaseApplication.symbols.437dbf0e-84ff-417a-965d-ed2bb9650972, https://dynamicssmb2.pkgs.visualstudio.com/DynamicsBCPublicFeeds/_packaging/MSSymbols/nuget/v3/index.json, highest build per major on 2026-09-20.
AL source 29: https://github.com/microsoft/BCApps, MIT, releases/29.x at a66254c3b8b5bb1cea290dc8f9d097aec4381153.

Jonas Paprotka, 2026-09-20.