---
title: "Mapping"
slug: "bc-bis-mapping"
tags: ["BC", "BIS", "Business Central", "Business Integration Solutions", "Concept", "Task"]
updated: 2026-06-25T07:31:13Z
published: 2026-06-25T09:59:17Z
canonical: "docs.staedean.com/bc-bis-mapping"
---

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

# Mapping

## About: Mapping

Mapping is the activity of defining a relationship between two documents.

In a typical integration scenario between Microsoft Dynamics 365 Business Central and an external system, two different documents apply. The internal document is a representation of the Microsoft Dynamics 365 Business Central table structure, including tables, fields, and relationships. The external document is a shared representation of the information being exchanged.

Part of the integration effort involves mapping the internal document to the external document during data export, or mapping the external document to the internal document during data import.

You can perform mapping between a source document and a target document in several ways:

- Direct mapping from a source element to a target element:
  - On single nodes (field-to-field mapping)
  - On complex nodes (parent node mapping)
- Mapping using a constant
- Mapping using an expression function

The following table provides links to and descriptions of the topics in this section:

| To | See |
| --- | --- |
| Learn about field-to-field mapping | [Field to field mapping](/business-central/docs/bc-field-to-field-mapping) |
| Learn about parent node mapping | [Mapping parent nodes](/business-central/docs/bc-mapping-parent-nodes) |
| Learn about field-to-constant mapping | [Field to constant mapping](/business-central/docs/bc-field-to-constant-mapping) |
| Learn about mapping using expressions | [Expression functions mapping](/business-central/docs/bc-expression-functions-mapping) |
| Learn about mapping activity extension points | [Extension points](/business-central/docs/bc-extension-points) |

![Example of Mapping](https://cdn.document360.io/da662430-6a41-47b1-8c7e-7e4ac37a9756/Images/Documentation/MappingWithExpression.png)

## Related

- [Field to field mapping](/bc-field-to-field-mapping.md)
- [Mapping parent nodes](/bc-mapping-parent-nodes.md)
- [Field to constant mapping](/bc-field-to-constant-mapping.md)
- [Expression functions mapping](/bc-expression-functions-mapping.md)
- [Extension points](/bc-extension-points.md)