---
title: "Set up master data entity message - Standard, External, or Target group"
slug: "set-up-master-data-entity-message-standard-external-or-target-group"
description: "Learn how to set up master data entity messages in Master Data Management Studio for efficient data distribution between companies and staging journals."
tags: ["Task topic"]
updated: 2026-03-20T12:21:41Z
published: 2026-03-20T17:44:40Z
canonical: "docs.staedean.com/set-up-master-data-entity-message-standard-external-or-target-group"
---

> ## 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.

# Set up master data entity message - Standard, External, or Target group

To distribute master data in Master Data Management Studio, Connectivity Studio messages are used.

For a master data entity, you can define the messages that are used to send master data:

- From a source company to a target company.
- From a source company to a staging journal.
- From a source company to a target group.
- From a staging journal to a target company.

This topic explains how to set up a master data entity message of type **Standard**, **External**, or **Target group**.

Prerequisites:

- Company setup
- Connectivity Studio setup (messages)

### Steps

1. Click **Master data management - Setup**.
2. On the **Master data entities** tab, in the list, find and select the desired master data entity.
3. Click **Edit**.
4. Expand the **Messages** section.
5. Click **New**.
6. In the **Type** field, select **Standard**, **External**, or **Target group**.
7. Define the master data management company from which you send the master data.

In the **Source company** field, enter or select a value.
8. Define the master data management company or target group to which you send the master data.

In the **Target company** field, enter or select a value.
9. Define the message to send the master data from the source company to the target company, to the staging journal of the target company, or to target group.

In the **Message** field, enter or select a value.
10. If you use staging in the target company, define the message to send the data from the staging journal to the target company.

In the **Staging** field, enter or select a value.
11. If you use the **MDM staging journal**, you can compare data. You can compare the current target company values with the values as sent from the source company to the staging journal.

To compare the data, a data comparison must be generated.

You can have the data comparison generated when the message is run that sends data from the source company to the **MDM staging journal**.

Select the **Generate compare data** check box.

> [!NOTE]
> **Note**
> 
> If you generate a data comparison, you can also apply a staging journal validation. This validation defines what happens with journal lines with data differences. To apply a staging validation, in Connectivity Studio, in the **Staging display options**, for the desired record, set up a validation with the **BisValidationMdmDifference** validation class. The **Exception behavior** and **Type** settings of the validation setup define what happens if differences are found. For more information, refer to [Set up staging validations](/data-management/docs/set-up-staging-validations).
12. You can run the staging message directly after the data is received in the staging journal.

Select the **Execute staging** check box.
13. Close the page.

## Related

- [Set up Connectivity studio for MDM Studio](/set-up-connectivity-studio-for-mdm-studio.md)
- [Set up master data entities](/set-up-master-data-entities.md)