How To Fix COM_PARTNER159 - The &2 &1 may not be contacted

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_PARTNER - Partner Processing Messages

• Message number: 159

• Message text: The &2 &1 may not be contacted

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 COM_PARTNER159 - The &2 &1 may not be contacted ?

  The SAP error message COM_PARTNER159 indicates that the system is unable to contact a specified communication partner (like a vendor, customer, or other business partner) for a particular transaction or process. This error typically arises in scenarios involving communication or integration between different systems or modules within SAP.
  Cause:
  
  Incorrect Partner Configuration: The communication partner may not be correctly configured in the system. This could include missing or incorrect entries in the partner profile.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the communication partner.
  Inactive Partner: The partner may be inactive or not set up for the specific communication type (e.g., EDI, IDoc).
  Authorization Issues: The user or system may not have the necessary authorizations to access the communication partner.
  Incorrect Communication Method: The method of communication (e.g., IDoc, RFC, etc.) may not be set up correctly.
  
  Solution:
  
  Check Partner Profile: Verify the configuration of the communication partner in transaction WE20 (for EDI partners) or the relevant transaction for your specific communication method. Ensure that all necessary details are correctly entered.
  Network Connectivity: Test the network connection to the partner system. Ensure that firewalls or other network security measures are not blocking the connection.
  Activate Partner: If the partner is inactive, activate it in the relevant configuration settings.
  Review Authorizations: Ensure that the user or system has the necessary authorizations to communicate with the partner. Check roles and authorizations in transaction PFCG.
  Check Communication Method: Ensure that the correct communication method is being used and that it is properly configured. This may involve checking settings in transaction WE21 for IDocs or other relevant transactions for different communication types.
  Logs and Traces: Review logs and traces for more detailed error messages. Use transaction SLG1 to check application logs or SM21 for system logs.
  
  Related Information:
  
  Transaction Codes: 
  
  WE20: Partner Profiles
  WE21: Port Definition
  PFCG: Role Maintenance
  SLG1: Application Log
  SM21: System Log
  
  
  Documentation: Refer to SAP Help documentation for detailed information on configuring communication partners and troubleshooting connectivity issues.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.