reserved-words-master-data-services.md

title	Reserved Words
description	Reserved Words (Master Data Services)
author	meetdeepak
ms.author	dkhare
ms.reviewer	mikeray
ms.date	03/05/2026
ms.service	sql
ms.subservice	master-data-services
ms.topic	concept-article
ms.custom	build-2025
helpviewer_keywords	reserved words [Master Data Services] Master Data Services, reserved words

Reserved Words (Master Data Services)

[!INCLUDE SQL Server - Windows only ASDBMI]

[!INCLUDE support-notice]

In [!INCLUDEssMDSshort], when you create model objects or members, some words cannot be used. Using these words may cause errors.

Note

You should also limit your use of special characters (symbols, hyphenation, etc.).

• Models

• Entities

• Explicit Hierarchies

• Attributes

• Members

Models

If you create a model with the name set to Name or Code, do not select Create entity with same name as model because Name or Code cannot be used for the name of an entity.

Entities

For entity names, you cannot use Name or Code.

Explicit hierarchies

For explicit hierarchy names, you cannot use Name or Code.

Attributes

• ID

• Code

• EnterUserName

• LastChgUserName

• Name

• EnterDTM

• EnterUserID

• EnterUserName

• LastChgDTM

• LastChgUserID

• Status_ID

• ValidationStatus_ID

• Version_ID

Members

For members, you cannot use MDMMemberStatus, MDMUnused, or ROOT for the Code attribute value.

See also

Master Data Services Overview (MDS)