00156 - Log on with a dialog user

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 156

• Message text: Log on with a dialog user

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 00156 - Log on with a dialog user ?

  The SAP error message "00156 Log on with a dialog user" typically occurs when a user attempts to log into the SAP system using a non-dialog user account. In SAP, dialog users are those who can log on to the system interactively, while other types of users (like service users or batch users) are not intended for interactive logon.
  Cause:
  
  User Type: The user account being used is not a dialog user. This could be a service user or a batch user, which are restricted from logging in interactively.
  Configuration Issues: There may be configuration settings in the SAP system that restrict certain user types from logging in.
  User Lock: The user account may be locked or inactive, which can also lead to this error.
  
  Solution:
  
  
  Check User Type:
  
  Verify the user type in the user master record (transaction code SU01).
  Ensure that the user is set up as a dialog user. The user type should be set to "Dialog" in the user profile.
  
  
  
  Create or Modify User:
  
  If the user is not a dialog user, you can either create a new dialog user or modify the existing user to change its type to dialog.
  To create a new dialog user, use transaction code SU01 and fill in the necessary details.
  
  
  
  Unlock User:
  
  If the user account is locked, unlock it using transaction code SU01. Check the "Lock" field and remove the lock if necessary.
  
  
  
  Check User Status:
  
  Ensure that the user is active and not set to "inactive" in the user master record.
  
  
  
  Consult with Basis Team:
  
  If you do not have the necessary permissions to make these changes, consult with your SAP Basis team or system administrator for assistance.
  
  
  
  Related Information:
  
  
  User Types in SAP:
  
  Dialog User: Can log on to the system interactively.
  Service User: Used for background processing and cannot log on interactively.
  System User: Typically used for system-to-system communication.
  
  
  
  Transaction Codes:
  
  SU01: User maintenance (to create or modify users).
  SU02: User type maintenance (to check user types).
  
  
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to user management and logon issues.
  
  
  By following these steps, you should be able to resolve the "00156 Log on with a dialog user" error and successfully log into the SAP system.