How To Fix XT636 - Communications system &2 of &1 locked

XT636 - Overview

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 636

• Message text: Communications system &2 of &1 locked

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 XT636 - Communications system &2 of &1 locked ?

  The SAP error message XT636 indicates that a communication system (like a logical system or a communication partner) is locked. This typically occurs in scenarios involving ALE (Application Link Enabling) or IDoc processing, where the system is unable to send or receive messages due to the locked status of the communication system.
  
  Cause:
  
  Locked Communication System: The communication system (identified by &1) is locked, which prevents any communication from occurring.
  System Configuration: The system may have been intentionally locked for maintenance or configuration changes.
  User Permissions: The user attempting to perform the action may not have the necessary permissions to unlock or access the communication system.
  Technical Issues: There may be underlying technical issues or inconsistencies in the configuration of the communication system.
  
  
  Solution:
  
  
  Unlock the Communication System:
  
  Go to transaction WE20 (Partner Profiles).
  Locate the relevant partner profile (the one indicated by &1).
  Check the status of the communication system and unlock it if necessary.
  
  
  
  Check Configuration:
  
  Ensure that the configuration