How To Fix RZ791 - &1 is reserved for system use

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 791

• Message text: &1 is reserved for system use

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RZ791 - &1 is reserved for system use ?

  The SAP error message RZ791 indicates that a specific user ID or resource is reserved for system use and cannot be utilized for other purposes. This message typically arises in the context of user management, system configuration, or when trying to access certain system resources that are designated for internal SAP processes.
  Cause:
  
  Reserved User IDs: Certain user IDs are reserved by SAP for system processes, such as SAP*, DDIC, or other system accounts.
  System Configuration: The system may be configured to restrict access to certain resources or user IDs to prevent conflicts or security issues.
  Authorization Issues: The user attempting to access the resource may not have the necessary authorizations or roles assigned.
  
  Solution:
  
  Check User ID: Ensure that the user ID you are trying to use is not one of the reserved IDs. If it is, you will need to choose a different user ID.
  Review System Configuration: Check the system settings to see if there are any restrictions on the user IDs or resources you are trying to access.
  Authorization Check: Verify that the user has the appropriate authorizations to perform the action. You may need to assign additional roles or permissions.
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance on reserved user IDs and system configurations.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error message or provide additional context.
  User Management: Familiarize yourself with user management best practices in SAP to avoid conflicts with reserved IDs.
  System Security: Understand the security implications of using reserved user IDs and ensure compliance with your organization's security policies.
  
  By following these steps, you should be able to resolve the RZ791 error and understand the underlying issues related to reserved system resources in SAP.