How To Fix CMS043 - The key selected is reserved for the customer

SAP Error Message - Details

• Message type: E = Error

• Message class: CMS - KPro: Content Management Service

• Message number: 043

• Message text: The key selected is reserved for the customer

What causes this issue?

You tried to add a new entry and in doing so, used a key value that
lies ouside of the namespace you manage.
This may lead to problems in future upgrades.

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?

Check your entry and if possible, enter a key value from within the
namespace you manage.
In the case of content repositories, all two-character names and all
names beginning with Y or Z are reserved for customers.

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 CMS043 - The key selected is reserved for the customer ?

  The SAP error message CMS043, which states "The key selected is reserved for the customer," typically occurs in the context of SAP Customer Management or SAP CRM when a user attempts to access or use a key (such as a customer number or a specific identifier) that has been reserved for a particular customer or is otherwise restricted.
  Cause:
  
  Key Reservation: The key you are trying to use is reserved for a specific customer, meaning it cannot be used for other purposes or by other users.
  Configuration Settings: The system may be configured to reserve certain keys for specific customers to prevent conflicts or data integrity issues.
  User Permissions: The user may not have the necessary permissions to access or use the reserved key.
  Data Entry Error: There may be a mistake in the data entry, leading to the selection of a reserved key inadvertently.
  
  Solution:
  
  Check Key Reservation: Verify if the key you are trying to use is indeed reserved for a customer. You can do this by checking the customer master data or the relevant configuration settings in the system.
  Use an Alternative Key: If the key is reserved, you will need to select a different key that is not reserved for any customer.
  Review User Permissions: Ensure that your user role has the necessary permissions to access the keys you need. If not, contact your system administrator to adjust your permissions.
  Consult Documentation: Refer to the SAP documentation or help files for more information on key management and reservation policies.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to customer management, such as BP (Business Partner) or CRM transactions, to better navigate the system.
  User Training: Ensure that users are trained on how to properly manage customer keys and understand the implications of key reservations.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.