---
title: "Set up master data entity validations"
slug: "set-up-master-data-entity-validations"
tags: ["Task topic"]
updated: 2026-03-20T12:21:29Z
published: 2026-03-20T17:44:40Z
canonical: "docs.staedean.com/set-up-master-data-entity-validations"
---

> ## 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 validations

For a master data entity, you can define the applicable validations.

A validation is applied when you approve master data. If the master data is invalid, the master data is not approved.

These validation classes are delivered with Master Data Management Studio:

- **BisMdmValidationCustomerContactPerson**: Checks if the contact person is defined.
- **BisMdmValidationCustomerBankAccount**: Checks if the bank account is defined.

Only apply these validations if the **Record table** is **CustTable**.

You can create custom validation classes. To do so, extend the **BisMdmValidationBase** class.

### Example

A validation rule with the **BisMdmValidationCustomerBankAccount** class is active for the master data entity.

You try to approve a customer master data record which bank account is not defined. As a result, the customer master data record is not approved. So, you cannot release this customer master data record till you define its bank account.

### 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 **Validations** section.
5. Click **New**.

> [!NOTE]
> **Note**
> 
> You can also initialize the validations. If validation classes exist for the record table, these validation classes are automatically added.
6. In the **Class name** field, enter or select the desired validation class.
7. You can activate a validation.

Select the **Active** check box.
8. Close the page.

## Related

- [Approve master record](/approve-master-record.md)
- [Set up master data entities](/set-up-master-data-entities.md)