How To Fix 00205 - Error in APPC CONN headers

00205 - Overview

• Message type: E = Error

• Message class: 00 -

• Message number: 205

• Message text: Error in APPC CONN headers

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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00205 - Details

• The SAP error message "00205 Error in APPC CONN headers" typically indicates an issue with the communication between SAP systems, particularly when using the Advanced Program-to-Program Communication (APPC) protocol. This error can arise due to various reasons, including configuration issues, network problems, or incorrect settings in the SAP system.
  Causes:
  
  
  
  Configuration Issues: Incorrect settings in the SAP system configuration for the APPC connection can lead to this error. This includes parameters in the SAP profiles or the connection settings in transaction codes like SM59.
  
  
  Network Problems: Network issues such as firewalls blocking the communication, incorrect routing, or network outages can cause this error.
  
  
  Version Mismatch: If there is a mismatch in the versions of the SAP systems trying to communicate, it can lead to header errors.
  
  
  Resource Limitations: Insufficient resources on the server, such as memory or CPU, can also lead to communication errors.
  
  
  Incorrect Connection Parameters: If the connection parameters (like the partner name, LU