How To Fix DNO231 - Error during log-on to SAP. Partner &1 is not permitted

DNO231 - Overview

• Message type: E = Error

• Message class: DNO - Messages for General Notifications

• Message number: 231

• Message text: Error during log-on to SAP. Partner &1 is not permitted

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.

DNO231 - Details

• The SAP error message DNO231, which states "Error during log-on to SAP. Partner &1 is not permitted," typically indicates that there is an issue with the communication between the SAP system and the partner system (which could be another SAP system or an external system). This error often arises in scenarios involving RFC (Remote Function Call) connections or when trying to log on to a system that is not authorized for the user or partner.
  Causes:
  
  Authorization Issues: The user or partner system does not have the necessary authorizations to log on to the SAP system.
  Incorrect Partner Configuration: The partner system may not be correctly configured in the SAP system, leading to communication issues.
  Network Issues: There may be network connectivity problems between the SAP systems.
  Incorrect Logon Credentials: The credentials being used to log on may be incorrect or not valid for the partner system.
  System Settings: The system settings may not allow connections