How To Fix LK026 - Receiving and transmitting systems must be entered

LK026 - Overview

• Message type: E = Error

• Message class: LK - WM -> SUB connection messages

• Message number: 026

• Message text: Receiving and transmitting systems must be entered

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 LK026 - Receiving and transmitting systems must be entered ?

  The SAP error message LK026 ("Receiving and transmitting systems must be entered") typically occurs in the context of Electronic Data Interchange (EDI) or when dealing with IDocs (Intermediate Documents) in SAP. This error indicates that the system requires specific information about the receiving and transmitting systems to process the data correctly.
  
  Cause:
  The error usually arises due to one of the following reasons:
  
  Missing Configuration: The receiving and transmitting systems have not been defined in the configuration settings for EDI/IDoc processing.
  Incomplete Master Data: The necessary master data for the partner profiles (such as logical systems) is not maintained.
  Incorrect Partner Profile: The partner profile may not be set up correctly, or the necessary parameters are missing.
  
  
  Solution:
  To resolve the LK026 error, you can follow these steps:
  
  
  Check Partner Profiles:
  
  Go to transaction WE20 (Partner Profiles).
  Ensure that the partner profiles for both the sending and receiving systems are correctly configured.
  Verify that the logical systems are correctly defined and