---
title: "Table 5378 Synth. Relation Mapping Buffer"
author: "Jonas Paprotka"
url: https://jonas-paprotka.de/ref/table/5378-synth-relation-mapping-buffer/
type: table
id: 5378
name: "Synth. Relation Mapping Buffer"
app: "Base Application"
versions: "24-28"
build: 28.5.54151.54365
source: "https://jonas-paprotka.de/ref/table/5378-synth-relation-mapping-buffer/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 5378 Synth. Relation Mapping Buffer

Jonas Paprotka, https://jonas-paprotka.de/ref/table/5378-synth-relation-mapping-buffer/

| | |
| --- | --- |
| App | Base Application |
| Versions | 24-28 |
| Source file | Integration/Dataverse/SynthRelationMappingBuffer.Table.al |

## Fields

| Id | Name | Type | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- |
| 1 | Synth. Relation Name | Text[100] | 24-28 | - | - |
| 2 | Rel. Native Entity Name | Text[100] | 24-28 | - | - |
| 3 | Rel. Virtual Entity Name | Text[100] | 24-28 | - | - |
| 4 | Virtual Table Caption | Text[200] | 24-28 | - | - |
| 5 | Virtual Table Logical Name | Text[100] | 24-28 | - | - |
| 6 | Syncd. Table Name | Text[80] | 24-28 | - | - |
| 7 | Syncd. Table External Name | Text[248] | 24-28 | - | - |
| 8 | Syncd. Table Id | Integer | 24-28 | - | - |
| 9 | Syncd. Field 1 Name | Text[80] | 24-28 | - | - |
| 10 | Syncd. Field 1 External Name | Text[100] | 24-28 | - | - |
| 11 | Syncd. Field 1 Id | Integer | 24-28 | - | - |
| 12 | Virtual Table Column 1 Caption | Text[200] | 24-28 | - | - |
| 13 | Virtual Table Column 1 Name | Text[100] | 24-28 | - | - |
| 14 | Syncd. Field 2 Name | Text[80] | 24-28 | - | - |
| 15 | Syncd. Field 2 External Name | Text[100] | 24-28 | - | - |
| 16 | Syncd. Field 2 Id | Integer | 24-28 | - | - |
| 17 | Virtual Table Column 2 Caption | Text[200] | 24-28 | - | - |
| 18 | Virtual Table Column 2 Name | Text[100] | 24-28 | - | - |
| 19 | Syncd. Field 3 Name | Text[80] | 24-28 | - | - |
| 20 | Syncd. Field 3 External Name | Text[100] | 24-28 | - | - |
| 21 | Syncd. Field 3 Id | Integer | 24-28 | - | - |
| 22 | Virtual Table Column 3 Caption | Text[200] | 24-28 | - | - |
| 23 | Virtual Table Column 3 Name | Text[100] | 24-28 | - | - |
| 24 | Relation Id | Guid | 24-28 | - | - |
| 25 | Relation Created | Boolean | 24-28 | - | - |
| 26 | Virtual Table Phys. Name | Text[100] | 24-28 | - | - |
| 27 | Virtual Table API Page Id | Integer | 24-28 | - | - |

## Keys

| Name | Fields | Versions |
| --- | --- | --- |
| PK, clustered | Synth. Relation Name, Virtual Table Logical Name, Syncd. Table Id, Syncd. Field 1 Id, Syncd. Field 2 Id, Syncd. Field 3 Id, Virtual Table Column 1 Name, Virtual Table Column 2 Name, Virtual Table Column 3 Name | 24-28 |

## 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.