How To Fix CMS044 - The selected key is reserved for SAP

CMS044 - Overview

• Message type: E = Error

• Message class: CMS - KPro: Content Management Service

• Message number: 044

• Message text: The selected key is reserved for SAP

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.

CMS044 - Details

• The SAP error message CMS044 ("The selected key is reserved for SAP") typically occurs when you attempt to create or modify a key (such as a document number, customer number, or material number) that is reserved for SAP's internal use. This can happen in various modules, including SAP Customer Management (CRM), SAP Materials Management (MM), or others.
  
  Cause:
  
  Reserved Key Ranges: SAP has predefined key ranges for certain objects that are reserved for system use. If you try to use a key that falls within these reserved ranges, you will encounter this error.
  Custom Number Ranges: If you are trying to create a custom number range and inadvertently select a number that overlaps with SAP's reserved ranges, this error will occur.
  
  Configuration Issues: Incorrect configuration in number range settings can lead to this error.
  
  
  Solution:
  
  
  Check Number Ranges: Review the number range settings for the object you are working with. Ensure that the key you are