How To Fix ACMTOOL013 - When choosing "Other user", a username must be specified

SAP Error Message - Details

• Message type: E = Error

• Message class: ACMTOOL - ACMTOOL Message Class

• Message number: 013

• Message text: When choosing "Other user", a username must be specified

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ACMTOOL013 - When choosing "Other user", a username must be specified ?

  The SAP error message ACMTOOL013, which states "When choosing 'Other user', a username must be specified," typically occurs in the context of authorization or user management within the SAP system. This error indicates that when you select the option to log in or perform an action as a different user (i.e., "Other user"), the system requires you to specify a valid username to proceed.
  Cause:
  
  Missing Username: The most common cause of this error is that the field for entering the username is left blank when you select "Other user."
  Incorrect Configuration: There may be a configuration issue in the system that is preventing the username from being recognized or processed correctly.
  User Permissions: The user attempting to switch to another user may not have the necessary permissions to perform this action.
  
  Solution:
  
  Enter a Username: Ensure that you enter a valid username in the designated field when you select "Other user." Double-check for any typos or errors in the username.
  Check User Permissions: Verify that the user has the necessary permissions to switch to another user. This may involve checking roles and authorizations in the SAP system.
  System Configuration: If the issue persists, it may be necessary to review the system configuration or consult with your SAP Basis team to ensure that the user management settings are correctly configured.
  SAP Notes: Check for any relevant SAP Notes or updates that may address this specific error message. Sometimes, SAP releases patches or notes that provide solutions for known issues.
  
  Related Information:
  
  User Management: Understanding how user management works in SAP can help in troubleshooting similar issues. Familiarize yourself with transaction codes like SU01 (User Maintenance) and SU10 (Mass User Maintenance).
  Authorization Checks: Review the authorization checks that are in place for the user roles involved. This can be done using transaction SU53 to analyze authorization failures.
  SAP Documentation: Refer to the official SAP documentation for more detailed information on user management and error handling.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with SAP's customer support for further assistance.