How To Fix EG156 - Device is already in list

SAP Error Message - Details

• Message type: E = Error

• Message class: EG - IS-U device management

• Message number: 156

• Message text: Device is already in list

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message EG156 - Device is already in list ?

  The SAP error message EG156 ("Device is already in list") typically occurs when you are trying to add a device (like a printer) to a list in SAP, but that device is already present in the list. This can happen in various contexts, such as when configuring output devices or managing print settings.
  Cause:
  
  Duplicate Entry: The most common cause is that the device you are trying to add is already listed in the output device configuration.
  Session Issues: Sometimes, if multiple sessions are open, the device might appear to be added in one session while it is already present in another.
  Configuration Errors: There may be issues with the configuration settings that lead to the system not recognizing the existing device correctly.
  
  Solution:
  
  
  Check Existing Devices: Before adding a new device, check the list of existing devices to confirm whether the device is already present. You can do this by navigating to the output device configuration in SAP.
  
  Use transaction code SPAD (Spool Administration) to view and manage output devices.
  
  
  
  Remove Duplicate Entries: If you find that the device is indeed listed, you can either:
  
  Use the existing device instead of trying to add a new one.
  If necessary, delete the duplicate entry if it is not needed.
  
  
  
  Refresh the Session: If you suspect that the issue is due to session conflicts, try logging out and logging back in, or refreshing the session.
  
  
  Check User Authorizations: Ensure that you have the necessary authorizations to modify the output device list. Lack of permissions can sometimes lead to misleading error messages.
  
  
  Consult Documentation: If the problem persists, refer to SAP documentation or consult with your SAP Basis team for further troubleshooting.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPAD (Spool Administration) and SU01 (User Maintenance) for managing output devices and user authorizations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  System Logs: Review system logs for any additional error messages or warnings that might provide more context about the issue.
  
  If the problem continues after trying these solutions, it may be beneficial to reach out to your SAP support team for further assistance.