How To Fix DI840 - Namespaces EY and EZ are reserved for (customer) lock objects

DI840 - Overview

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 840

• Message text: Namespaces EY and EZ are reserved for (customer) lock objects

What causes this issue?

Views and lock objects lie in the same namespace. Since EY and EZ are
reserved as customer namespaces for lock objects in addition to the
usual customer namespaces, views may not be created in this namespace.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose a different name.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI840 - Namespaces EY and EZ are reserved for (customer) lock objects ?

  The SAP error message DI840 indicates that the namespaces EY and EZ are reserved for customer lock objects. This error typically arises when a developer or user attempts to create or use a lock object in these namespaces, which are reserved for specific purposes in the SAP system.
  
  Cause:
  
  Namespace Conflict: The namespaces EY and EZ are reserved for customer-specific lock objects. If you try to create a lock object in these namespaces, the system will throw this error.
  Incorrect Configuration: Sometimes, the error can occur due to incorrect configuration or attempts to use reserved namespaces for custom development.
  
  
  Solution:
  
  Use Different Namespace: Instead of using EY or EZ, you should use a different namespace for your custom lock objects. SAP recommends using your own namespace (e.g., Z or Y) for custom developments.
  Check Existing Lock Objects: If you are trying to modify or use an existing lock object, ensure that it is not in the